JP2009195132A - Planting implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a planting implement whose lateral weight balance is improved to prevent the rolling of the implement, thereby improving the accuracy of planting. <P>SOLUTION: Provided is the planting implement 3 connected to a travel machine frame 1, characterized by disposing an input case 8 between a planting transmission case 6 at the left outer end and a planting transmission case 6 at the right outer end, disposing a transversely transferring transmission case 10 on the outside of the planting transmission case 6 at the left outer end or at the right outer end, and disposing the input case 8 and the transversely transferring transmission case 10 on the mutually opposite sides across the lateral central line of the planting implement 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

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

2. Description of the Related Art Planting work machines that are used in connection with traveling machine bodies such as passenger rice transplanters are known. For example, the planting work machine shown in Patent Document 1 includes a work machine frame arranged facing in the left-right direction, a seedling mounting table that is laterally fed in accordance with the rotation of the lateral feed shaft, and a left-right direction. A plurality of planting transmission cases that are arranged in parallel at predetermined intervals and whose front end is connected to the work machine frame, and provided at the rear of each planting transmission case, separate the seedlings on the seedling platform. Planting mechanism to be planted in the field, input case for inputting power from the traveling machine body side, and arranged in parallel to the work equipment frame, and distributing the power output from the input case to each planting transmission case A power distribution shaft and a transverse feed transmission case that rotates the transverse feed shaft with power extracted from the power distribution shaft are configured.
JP-A-2005-65502

However, in the planting work machine shown in Patent Document 1, since the arrangement of the cases is uneven, the weight balance of the planting work machine is biased to either the left or right, which may adversely affect the planting accuracy. .
Moreover, in the planting work machine shown by patent document 1, since the input shaft of the input case is arrange | positioned under the work machine frame, the transmission which connects the planting PTO axis | shaft by the side of a body and the input shaft of an input case. There was a possibility that the bending angle of the shaft would be increased and the planting performance would be adversely affected.
Furthermore, in the planting work machine shown in Patent Document 1, since the lateral feed shaft is arranged above the work machine frame and the input case, the position of the center of gravity of the planting work machine is increased, which adversely affects the planting accuracy. There was a possibility of affecting.

The present invention was created for the purpose of solving these problems in view of the above circumstances, and is a planting work machine that is used by being connected to a traveling machine body. The working machine frame to be arranged, the seedling mounting table that is laterally fed in accordance with the rotation of the lateral feed shaft, and a parallel arrangement with a predetermined interval in the left and right direction, the front end portion being the working machine frame A plurality of planting transmission cases to be connected, a planting mechanism that is provided at the rear of each planting transmission case and separates the seedlings on the seedling stand and transplants them on the field, and an input for inputting power from the traveling machine body side A power distribution shaft that is arranged in parallel to the case and the work machine frame and distributes the power output from the input case to each planting transmission case, and the transverse feed shaft is rotated by the power extracted from the power distribution shaft A transverse feed speed change case, and the input case is Arranged between the planting transmission case at the left outer end and the planting transmission case at the right outer end, and the lateral feed speed change case is disposed outside the planting transmission case at the left outer end or the right outer end. Furthermore, the input case and the lateral feed speed change case are characterized in that they are arranged on the opposite sides across the center line of the planting work machine. If it does in this way, since the right-and-left weight balance of a planting work machine is improved, rolling of a planting work machine can be suppressed and planting accuracy can be improved.
Further, the input case bypasses the upper rear of the work machine frame and transmits power to the power distribution shaft, and the lateral feed transmission case has an extending portion extending upward from a coupling position with the power distribution shaft. And having one end of the transverse feed shaft supported by the extending portion. In this way, since the input shaft of the input case can be arranged above the work machine frame, the bending angle of the transmission shaft connecting the planting PTO shaft on the machine body and the input shaft of the input case is reduced, and the planting work Smooth power can be transmitted to the machine. In addition, since the lateral feed shaft can be arranged at a position lower than the upper surface of the input case using the space behind the work machine frame, the center of gravity of the planting work machine can be lowered and the rolling of the planting work machine can be suppressed. it can.

  Next, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a traveling machine body of a riding rice transplanter, and a planting work machine 3 is connected to a rear portion of the traveling machine body 1 via an elevating link mechanism 2 so as to be movable up and down. A planting PTO shaft (not shown) projects from the rear part of the traveling machine body 1, and the power output from the planted plant is planted via a bendable transmission shaft (not shown) provided with a universal joint. It is transmitted to the auxiliary work machine 3.

  As shown in FIGS. 1 to 7, the planting work machine 3 includes a work machine frame 4, a seedling stage 5, a planting transmission case 6, a planting mechanism 7, an input case 8, a power distribution shaft 9, a lateral feed speed change. A case 10 and a transverse feed shaft 11 are provided. The work machine frame 4 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 work machine frame 4 is connected to the lifting link mechanism 2 via a rolling shaft 12 that protrudes forward from the left-right center position. It is connected to the rear end portion in a freely rolling manner. The seedling placing stand 5 has a seedling placing 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 planting transmission case 6 is arranged in parallel with a predetermined interval in the left-right direction, and the front end portion is integrally connected to the work machine frame 4. The planting mechanism 7 is provided at the rear part of the planting transmission case 6 and separates the seedlings on the seedling mounting stand 5 to plant them in the field. The number and arrangement of the planting transmission case 6 and the planting mechanism 7 are determined according to the number of planting strips of the planting work machine 3. For example, in the 6-planting planting machine 3 shown in FIG. 2, three planting transmission cases 6 are arranged in parallel at equal intervals, and the planting mechanisms 7 are arranged on the left and right sides of each planting transmission case 6. Is provided. Further, in the five-planting planting machine 3 shown in FIG. 3, the three planting transmission cases 6 are arranged in parallel at unequal intervals, and on the left and right sides of the planting transmission case 6 located at the left and right ends. While the planting mechanism 7 is provided, the planting mechanism 7 is provided only on one side of the intermediate planting transmission case 6. 2 and 3, illustration of the planting mechanism 7 is omitted.

  The input case 8 is a case body for inputting power from the traveling machine body 1 side, and includes an input portion 8a that supports the input shaft 13 and an output portion 8b that supports the output shaft 14. These are integrally attached to the intermediate portion of the work machine frame 4. The power distribution shaft 9 is arranged in parallel below the work machine frame 4 and distributes the power output from the input case 8 to each planting transmission case 6. The power distribution shaft 9 of this embodiment is a joint shaft 9b that connects the input shaft 9a of the planting transmission case 6 and the input shafts 9a and 9a (or between the input shaft 9a and the output shaft 14 of the input case 8). However, it may be a long shaft in which these are integrated.

  The lateral feed transmission case 10 rotates the lateral feed shaft 11 with the power extracted from the power distribution shaft 9. A shift mechanism for shifting the rotational speed of the lateral feed shaft 11 is incorporated in the lateral feed speed change case 10, and the lateral feed speed of the seed bed 5 is changed by shifting the speed change mechanism. It becomes possible to do. The transverse feed shaft 11 includes a screw shaft having an endless spiral groove on the outer peripheral portion, and a transverse feed body (not shown) that reciprocates left and right on the shaft according to the rotation of the screw shaft. By connecting the lateral feed body to the seedling stage 5, the lateral feed of the seedling stage 5 is performed.

  Next, a characteristic configuration of the planting work machine 3 according to the present embodiment will be described.

  As shown in FIGS. 2 and 3, the input case 8 is arranged between the planting transmission case 6 at the left outer end and the planting transmission case 6 at the right outer end. The input case 8 and the lateral feed transmission case 10 are arranged on the opposite side of the right and left center line of the planting work machine 3. Yes. For example, in the planting work machine 3 of the present embodiment, the lateral feed speed change case 10 is arranged on the left side of the left and right center line (rolling shaft 12) of the planting work machine 3, and from the left and right center line of the planting work machine 3 Also, an input case 8 is arranged on the right side. When the planting work machine 3 is configured in this way, the left and right sides of the planting work machine 3 are compared with the case where the input case 8 and the lateral feed speed change case 10 are arranged on the same side with respect to the left and right center line of the planting work machine 3. Since the weight balance is improved, rolling of the planting work machine 3 can be suppressed and planting accuracy can be improved.

  Further, as shown in FIG. 4, the input case 8 bypasses the upper rear of the work machine frame 4 to transmit power to the power distribution shaft 9, and the lateral feed transmission case 10 is coupled to the power distribution shaft 9. An extending portion 10a extending upward from the upper end of the transverse feed shaft 11 is supported by the extending portion 10a. More specifically, the input case 8 is formed in an inverted L shape in side view so as to follow the upper surface and the rear surface of the work machine frame 4, and the power input from the input shaft 13 is transmitted to the upper and rear sides of the work machine frame 4. The detour is configured to be transmitted to the power distribution shaft 9 arranged in parallel to the rear lower side of the work machine frame 4, and the lateral feed transmission case 10 extends upward from the coupling position with the power distribution shaft 9. The lateral feed shaft 11 is pivotally supported by the upper end portion of the protruding portion 10a, and power is transmitted to the lateral feed shaft 11 via the intermediate shaft 15. If the planting work machine 3 is configured in this way, the input shaft 13 of the input case 8 can be disposed above the work machine frame 4, so that the planting PTO shaft on the machine body side and the input shaft 13 of the input case 8 are connected. The bending angle of the transmission shaft can be reduced, and smooth power can be transmitted to the planting work machine 3. Further, since the lateral feed shaft 11 can be arranged at a position lower than the upper surface of the input case 8 by using the rear space of the work machine frame 4, the center of gravity of the planting work machine 3 is lowered, and the planting work machine 3 is rolled. Can be suppressed.

  As shown in FIGS. 5 to 7, the input case 8 has an input portion 8 a that pivotally supports the input shaft 13 in order to transmit power to the power distribution shaft 9 by bypassing the upper rear side of the work machine frame 4. The output portion 8b supporting the output shaft 14 is biased toward the rolling shaft 12 so that the output shaft 14 can be connected to the power distribution shaft 9 below the input portion 8a. The input shaft 13 and the rolling shaft 12 are superposed in a side view. If the planting work machine 3 is configured in this manner, the input shaft 8 approaches the rolling shaft 12 side by biasing the input case 8, so that the rotational reaction force of the input shaft 13 affects the rolling of the planting work machine 3. The influence can be reduced. Further, by connecting the output shaft 14 to the power distribution shaft 9 below the input portion 8a, the input case 8 and the planting transmission case 6 can be arranged close to each other. Also in the planting work machine 3 (for example, 6 rows planting) arrange | positioned, the position of the input case 8 can be brought close to the left-right center as much as possible. Furthermore, since the input shaft 13 and the rolling shaft 12 of the input case 8 are overlapped in a side view, the position of the rolling shaft 12 is set low, and the left and right of the entire planting work machine (especially the planting claw position) during rolling. Can reduce plant runout and improve planting accuracy.

  As shown in FIGS. 5 to 7, the input case 8 is a three-divided case that is divided into three vertically when the input unit 8a is biased to one side with respect to the output unit 8b. It is configured. For example, a first case 8c having an inverted L-shape in side view that integrally forms the inner half of the input portion 8a and the output portion 8b, a second case 8d that forms the outer half of the input portion 8a, and the output portion 8b The input case 8 is configured by a three-divided case including a third case 8e that forms the outer half of the input case. When the planting work machine 3 is configured in this way, not only can the input unit 8a and the output unit 8b be configured as separate cases, but the number of parts of the input case 8 can be reduced and the cost can be reduced. Can be reduced in weight.

  The input case 8 configured as described above is fixed to the work machine frame 4 (or the mounting seat 16 provided on the work machine frame 4) at at least two places. One fixing portion 8 f is formed in the input portion 8 a and is bolted to the upper surface side of the work machine frame 4. In this way, the force that the input shaft 13 receives from the transmission shaft toward the rear and rear can be received as the force in the direction in which the work implement frame 4 is pressed. The fixing strength of the input unit 8a can be improved as compared with the case of receiving. The other fixing portion 8g is formed at the output portion 8b and is bolted to the back side of the work machine frame 4. In this way, the rotational reaction force of the output shaft 14 can be received as a force in the direction in which the work implement frame 4 is pressed. The fixing strength of the part 8b can be improved.

  According to the present embodiment configured as described, the planting work machine 3 used by being connected to the traveling machine body 1, the work machine frame 4 arranged facing the left-right direction, and the lateral feed shaft 11. A plurality of planting transmission cases arranged in parallel with a predetermined interval in the left-right direction and having a front end portion connected to the work machine frame 4 6, a planting mechanism 7 provided at the rear part of each planting transmission case 6, separating the seedlings on the seedling mount 5 and planting them in the field, and an input case 8 for inputting power from the traveling machine body 1 side, A power distribution shaft 9 that is arranged in parallel to the work machine frame 4 and distributes the power output from the input case 8 to each planting transmission case 6, and the lateral feed shaft 11 by the power extracted from the power distribution shaft 9. The input case 8 is provided at the left outer end. The lateral transmission speed change case 10 is arranged on the outer side of the left outer end or the right outer end planting transmission case 6, and is arranged in the middle between the auxiliary transmission case 6 and the right outer end planting transmission case 6. Since the input case 8 and the lateral feed speed change case 10 are arranged on the opposite sides across the left and right center line of the planting work machine 3, the right and left weight balance of the planting work machine 3 can be improved. The rolling of the planting work machine 3 can be suppressed and the planting accuracy can be improved.

  The input case 8 bypasses the upper rear of the work machine frame 4 to transmit power to the power distribution shaft 9, and the lateral feed transmission case 10 extends upward from the coupling position with the power distribution shaft 9. Since the projecting portion 10a is provided and one end of the transverse feed shaft 11 is pivotally supported by the extending portion 10a, the input shaft 13 of the input case 8 is arranged above the work machine frame 4 so that the planting side PTO The bending angle of the transmission shaft that connects the shaft and the input shaft 13 of the input case 8 can be reduced, and smooth power can be transmitted to the planting work machine 3. Further, since the lateral feed shaft 11 can be arranged at a position lower than the upper surface of the input case 8 by using the rear space of the work machine frame 4, the center of gravity of the planting work machine 3 is lowered, and the planting work machine 3 is rolled. Can be suppressed.

It is a side view of a riding rice transplanter. It is a principal part top view of a planting work machine (6 row planting). It is a principal part top view of a planting work machine (5-row planting). It is a principal part side view of a planting work machine. It is a top view of an input case. It is a side view of an input case. It is a rear view of an input case.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling machine body 3 Planting work machine 4 Work machine frame 5 Seedling stand 6 Planting transmission case 7 Planting mechanism 8 Input case 8a Input part 8b Output part 9 Power distribution shaft 10 Lateral feed speed change case 11 Lateral feed shaft 12 Rolling shaft 13 Input shaft 14 Output shaft

Claims (2)

It is a planting work machine used in connection with a traveling machine body,
A work machine frame arranged facing left and right,
A seedling platform that is laterally fed in accordance with the rotation of the transverse feed shaft,
A plurality of planting transmission cases that are arranged in parallel with a predetermined interval in the left-right direction and whose front end is connected to the work machine frame;
A planting mechanism that is provided at the rear of each planting transmission case, and separates the seedlings on the seedling stand and transplants them on the field;
An input case for inputting power from the traveling machine body side;
A power distribution shaft that is arranged in parallel to the work machine frame and distributes the power output from the input case to each planting transmission case;
A transverse feed transmission case that rotates the transverse feed shaft with the power extracted from the power distribution shaft,
The input case is arranged between the planting transmission case at the left outer end and the planting transmission case at the right outer end,
The lateral feed transmission case is arranged on the outer side of the left outer end or the right outer end planting transmission case,
Further, the planting work machine is characterized in that the input case and the lateral feed transmission case are arranged on the opposite sides across the center line of the planting work machine. The input case bypasses the upper rear of the work machine frame and transmits power to the power distribution shaft.
The lateral feed transmission case has an extending portion that extends upward from a coupling position with the power distribution shaft, and the extending portion supports one end of the lateral feed shaft. Planting machine.

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