JP2015149942A - seedling transplanting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling transplanting machine that eliminates the need for oiling of the lubricating oil to a contact part between a seedling loading platform and a seedling receiving member by manual operation, and can automatically perform the oiling work in proper timing.SOLUTION: A seedling transplanting machine is characterized by: providing a seedling planting unit 4 at the rear of a traveling vehicle body 2 through a lifting/lowering link 3; connecting a planting unit frame 65 to the tip of the lifting/lowering link 3 in the seedling planting unit 4; mounting a seedling receiving member 47 to the planting unit frame 65; installing a slidable seedling loading platform 51 in the horizontal direction of the traveling vehicle body 2 on the seedling receiving member 47; providing a slide mechanism 48 on the seedling receiving member 47, the slide mechanism that makes the seedling loading platform 51 slide on the seedling receiving member 47; installing a seedling planting device 52 for taking the seedling on seedling loading platform 51 and planting it in the field; providing a lubricant supply device S (including a lubricating oil pump 94, and oil feed pipes 90, 93) for supplying lubricant to the seedling planting unit 4, and an operation motor 88 for operating the lubricant supply device S on the planting unit frame 65; and further providing a control device 100 for operating the operation motor 88 on the traveling vehicle body 2.

Description

  The present invention relates to a seedling transplanting machine for planting seedlings in a field by a machine.

  In the seedling transplanting machines described in Patent Literature 1 and Patent Literature 2 below, a seedling tank (seedling platform) for loading seedlings is placed in a horizontal direction on a seedling receiving plate (seedling receiving member) provided in a frame of a seedling planting portion. It is slidably attached to. The contact portion between the seedling tank and the seedling receiving plate is configured to lubricate a lubricant such as grease in order to reduce friction when the seedling tank slides.

JP 2011-244767 A JP 2011-205908 A

  In the seedling transplanter described in Patent Document 1 and Patent Document 2, it is necessary to manually perform the lubrication work of lubricating the lubricant in the contact portion between the seedling tank and the seedling receiving plate. There is a problem that labor is increased.

  In addition, when lubricating oil is manually poured into the contact portion between the seedling tank (seedling stage) and the seedling receiving plate (seedling receiving member), the amount of lubrication becomes uneven, resulting in insufficient or excessive supply of lubricant. Is likely to occur. When the lubricant is insufficient, the sliding speed of the seedling tank becomes unstable, and there is a problem that planting of the seedling is hindered. On the other hand, when the lubricant is excessively supplied, the lubricant overflows from the contact portion when the seedling tank slides, causing a problem that the field is contaminated by the dropped lubricant.

Furthermore, if the timing at which the supply of the lubricant is required is earlier than the operator's assumption, there is a problem that the sliding speed of the seedling tank is disturbed and damage due to seizure occurs.
Accordingly, the problem of the present invention is that it is not necessary to manually lubricate the contact portion between the seedling platform (seedling tank) and the seedling receiving member (seedling receiving plate), and the lubrication is automatically performed at an appropriate timing. It is to provide a seedling transplanter that can do the work.

The above-mentioned problem of the present invention is solved by the following means.
According to the first aspect of the present invention, a seedling planting part (4) is provided at the rear part of the traveling vehicle body (2) via a lifting link (3), and the seedling planting part (4) is provided with a lifting link (3). A planting part frame (65) is connected to the tip, a seedling receiving member (seedling receiving plate) (47) is attached to the planting part frame (65), and a traveling vehicle body (2) is mounted on the seedling receiving member (47). ) And a sliding mechanism (48) that slides the seedling stage (51) on the seedling receiving member (47). A seedling planting device (52) that is provided on the receiving member (47), takes seedlings on the seedling stage (seedling tank) (51), and plants them on the field is mounted, and a lubricant is applied to the seedling planting part (4). A lubricant supply device (S) to be supplied and an operation actuator (88) for operating the lubricant supply device (S) are provided on the planting part frame (65). A seedling transplantation machine, characterized in that the control device (100) provided on the vehicle body (2) for operating the Yueta (88).

  According to the second aspect of the present invention, the control device (100) records (a) work time (T) (eg, a1) key-on time or a2) planting clutch engagement time) and reaches a predetermined time. Or (b) record the work area (S) (e.g., b1) travel distance or b2) calculated with map / GPS information etc. and reach a predetermined area, or (c) seedling stage (51 2. The seedling transplanter according to claim 1, wherein when the number of times of sliding (N) reaches a predetermined number, the operating actuator is operated for a predetermined time.

  The invention according to claim 3 is provided with an actuating member (switch, button, etc.) (89) for actuating the actuating actuator (88), and when the actuating member (89) is operated, the actuating actuator (88) is made continuous. Or when the actuator (89) is operated, the actuator (88) is stopped even if the actuator (89) is operated. The seedling transplanter according to claim 1 or 2, wherein the control device (100) has a control configuration to be performed.

  According to the fourth aspect of the present invention, when the operating member (89) is operated, the working time (T), the working area (S), or the sliding of the seedling stage (51) recorded in the control device (100). The seedling transplanter according to any one of claims 1 to 3, wherein the control device (100) includes a configuration for initializing operating conditions for work including the number of times (N). is there.

  According to the fifth aspect of the present invention, the lubricant supply device (S) includes a lubricant tank (91) for storing the lubricant, a discharge nozzle (92) for discharging the lubricant, and a lubricant in the discharge nozzle (92). A lubricating oil pipe (oil-feeding tube) (90, 93) for sending the lubricant from the tank (91) and a discharge pump (94) for discharging the lubricant from the lubricant tank (91) by a predetermined amount; 91) A plurality of partition members (partition plates) (95) are disposed inside, and one more discharge nozzle (92) is mounted below the lubricant tank (91) than the partition members (95). The seedling transplanting machine according to any one of claims 1 to 4, wherein the seedling transplanting machine is characterized.

  The invention according to claim 6 is a sliding mounting that slides together with the seedling mount (seedling tank) (51) while contacting the seedling receiving member (seedling receiving plate) (47) with the planting part frame (65). A supply hole portion (97) for supplying a lubricant is formed in the slide mounting portion (96), and the supplied lubricant is supplied to the supply hole portion (97). The moving hole part (98) moved to the planting part support frame (65) side is formed, and the lubricating oil pipe (oil feeding tube) (90) is connected to the supply hole part (97). It is a seedling transplanting machine described in 1.

  According to the first aspect of the present invention, the lubricant supply device S that supplies the lubricant to the seedling planting unit 4 is provided, and the operation actuator 88 that operates the lubricant supply device S is provided. There is no need to manually supply the lubricant to each part of the seedling planting part 4, and the maintainability is improved as compared with the prior art.

  By controlling the operation of the operation actuator 88 by the control device 100, the lubricant is supplied to the seedling planting unit 4 when the conditions are satisfied. Malfunctions and damage are prevented.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the operation actuator 88 is operated every predetermined time to operate the lubricant supply device S, thereby According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, an operation for operating the operating actuator 88 is prevented. By providing the member 89, the operator can supply the working oil (lubricant) to the necessary part of the seedling planting unit 4 at an arbitrary timing, so that the lubricant is supplied in a timely manner when necessary. Can do.

  Even if the operation member 89 continues to operate (operate), the operation member 89 stops after a predetermined time, so that it is possible to prevent defective supply of the operation member 89 or supply of excess lubricant due to accidental pressing. The consumption of the agent is reduced, and the lubricant is prevented from flowing into the field.

  According to the invention of claim 4, in addition to the effect of the invention of any one of claims 1 to 3, when the operation of the operation member 89, that is, the manual operation of the operation member 89 is performed, the control device By initializing the operating conditions for the work recorded in 100, it is possible to prevent the supply of the lubricant to a necessary part of the seedling planting part 4 from being performed in a short period of time. An increase in consumption due to the supply is prevented, and contamination due to the lubricant flowing into the field is prevented.

  According to the invention described in claim 5, in addition to the effect of the invention described in any one of claims 1 to 4, the inside of the lubricant tank 91 is partitioned by the partition member 95. Since the same amount of lubricant enters each partitioned portion, the substantially same amount of lubricant can be supplied to the plurality of discharge nozzles 92, and the amount of lubricant sent to the necessary portion of the seedling planting unit 4 It is possible to prevent the increase in the number of the unbalanced parts and the shortage of the parts and prevent the part of the seedling planting part 4 from being partially worn.

  According to the sixth aspect of the invention, in addition to the effect of the fifth aspect of the invention, the lubricant is periodically supplied to the contact portion between the sliding mounting portion 96 and the planting portion support frame 65 having a large friction. This prevents malfunction and damage due to lack of lubricant.

It is a side view of the riding type seedling transplanter of the Example of this invention. It is a top view of the riding type seedling transplanter of FIG. It is a principal part side view of the rotor support structure of the riding type seedling transplanter of FIG. It is a principal part top view of the seedling planting part of the riding type seedling transplanting machine of FIG. It is a control block diagram of the riding type seedling transplanter of FIG. They are a top view (Drawing 6 (a)) and a side view (Drawing 6 (b)) of a seedling tank part showing a lubricant supply device of a riding type seedling transplanter of Drawing 1. FIG. 7 is an enlarged view of a reserve tank portion in FIG. 6 (a longitudinal sectional view of a portion that distributes lubricating oil from the reserve tank to a plurality of oil feeding tubes). It is a block diagram (FIG. 8 (a)) of the lubrication agent supply apparatus which consists of a reserve tank of FIG. 6, a lubricating oil pump, and an oil feeding pipe, and a longitudinal cross-sectional view (FIG.9 (b)) of a reserve tank. FIG. 9 is an enlarged plan view (FIG. 9A) of the lower left end portion of the seedling tank of the riding type seedling transplanter of FIG. 1 and an AA arrow view of FIG. 9A (FIG. 9B). It is a top view of the HST lever guide of the riding type seedling transplanter of FIG. FIG. 2 is a plan view of an auxiliary transmission lever guide of the riding seedling transplanter of FIG. 1. FIG. 12 is a simplified side view (FIG. 12A) of a step portion on the vehicle body of the riding seedling transplanter of FIG. 1 and a simplified plan view of the step portion (FIG. 12B).

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
In the present specification, the forward direction of the seedling transplanter is referred to as the front side, the backward direction is referred to as the rear side, and the left-right direction toward the forward direction is referred to as the left side and the right side, respectively.

  FIG. 1 and FIG. 2 are a side view and a plan view of a riding seedling transplanter which is an embodiment using the present invention. The riding seedling transplanter 1 has a seedling planting portion 4 mounted on the rear side of a traveling vehicle body 2 via a lifting link device 3 so as to be lifted and lowered.

  The traveling vehicle body 2 is a four-wheel drive vehicle including a pair of left and right front wheels 10 and 10 and a pair of left and right rear wheels 11 and 11 as drive wheels, and a transmission case 12 is disposed at the front of the fuselage. Front wheel final cases 13, 13 are provided on the left and right sides of the case 12, and the left and right front wheels are mounted on the left and right front wheel axles projecting outward from the respective front wheel support portions capable of changing the steering direction of the left and right front wheel final cases 13, 13. 10 and 10 are respectively attached.

Further, a seedling planting portion 4 is mounted on the rear side of the traveling vehicle body 2 so as to be movable up and down via a lifting link device 3, and a main body portion of the fertilizer application device 5 is provided on the upper rear portion of the traveling vehicle body 2.
Further, the front end portion of the main frame 15 is fixed to the rear portion of the transmission case 12, and a rear wheel rolling shaft (not shown) provided horizontally in the front and rear at the center of the rear end of the main frame 15 is used as a fulcrum. The rear wheel gear cases 18 and 18 are supported in a freely rolling manner, and the rear wheels 11 and 11 are attached to a rear wheel axle 11a that protrudes outward from the rear wheel gear cases 18 and 18.

  The engine 20 is mounted on the main frame 15, and the rotational power of the engine 20 is transmitted to the transmission case 12 via a hydrostatic continuously variable transmission (HST) 23 and the like. The rotational power transmitted to the mission case 12 is shifted by a transmission in the case 12 and then separated into traveling power and external power to be extracted.

  A part of the traveling power is transmitted to the front wheel final cases 13 and 13 to drive the front wheels 10 and 10, and the rest is transmitted to the rear wheel gear cases 18 and 18 to drive the rear wheels 11 and 11. Further, the external take-out power is transmitted to the seedling planting section 4 by a planting clutch 69 (shown only in FIG. 5) provided in the seedling planting transmission case 50 and a planting transmission shaft.

  A seat 31 is installed at the top of the engine 20. A front cover 32 incorporating various operation mechanisms is provided in front of the seat 31, and a handle 34 for steering the front wheels 10 and 10 is provided above the front cover 32. The left and right sides of the lower end of the front cover 32 are horizontal floor steps 35. The floor step 35 is provided with a number of holes (see FIG. 2), and mud on the shoe of the worker walking through the step 35 falls to the field. The rear part on the floor step 35 is a rear step 36 that also serves as a rear wheel fender.

  In addition, on the left and right sides of the front part of the traveling vehicle body 2, a spare seedling stage 38 on which supplementary seedlings are placed may be provided. The elevating link device 3 has a parallel link configuration, and includes one upper link 40 and a pair of left and right lower links 41, 41. These links 40, 41, 41 are pivotally attached to a rear-view portal-shaped link base frame 42 erected on the rear end of the main frame 15, and a vertical link 43 is connected to the tip side thereof. ing.

And the connecting shaft 44 rotatably supported by the seedling planting part 4 is inserted and connected to the lower end part of the vertical link 43, and the seedling planting part 4 is connected to the said centering shaft 44 so that rolling is possible.
An elevating hydraulic cylinder 46 is provided between a support member 42 fixed to the main frame 15 and a tip of a swing arm (not shown) formed integrally with the upper link 40, and the cylinder 46 is expanded and contracted hydraulically. As a result, the upper link 40 rotates up and down, and the seedling planting part 4 moves up and down while maintaining a substantially constant posture.

  The seedling planting section 4 has a six-row planting structure, a seedling planting transmission case 50 that also serves as a frame, a mat seedling, and a left and right reciprocating motion to supply seedlings one by one to the seedling outlets 51a,. In addition, when all the seedlings for one horizontal row are supplied to the seedling outlet 51a, ..., the seedling stage 51 for transferring the seedling downward by the seedling feeding belt 51b, ..., the seedling supplied to the seedling outlet 51a, ... A seedling planting device 52 to be planted, and a pair of left and right drawing markers (not shown) for drawing the aircraft path in the next process to the topsoil surface are provided.

  In the lower part of the seedling planting part 4, a center float 55 is provided in the center, and side floats 56, 56 are provided on the left and right sides thereof. When these floats 55, 56, 56 are grounded on the mud surface of the field, the aircraft moves forward, and the floats 55, 56, 56 slide while leveling the mud surface. Seedlings are planted by. Each of the floats 55, 56, and 56 is rotatably attached so that the front end side thereof moves up and down according to the unevenness of the soil surface of the field, and the vertical movement of the front part of the center float 55 is a float inclination angle sensor during planting work. The planting depth of the seedling is always maintained constant by switching the hydraulic valve that controls the lifting hydraulic cylinder 46 according to the detection result to raise and lower the seedling planting unit 4. To do.

  A rotor 27 (27a, 27b) which is an example of a leveling device is attached to the seedling planting unit 4. In addition, the seedling mount 51 is supported by being rolled and supported by a support roller 65a on the upper part of a frame member 65b of a rectangular support frame 65 that is full in the left-right direction and the vertical direction that supports the entire seedling planting unit 4. It is configured to slide on the plate 47 in the left-right direction.

  The fertilizer applicator 5 feeds the granular fertilizer stored in the fertilizer hopper 60 by a certain amount by the feeding portions 61,... And applies the fertilizer to the left and right sides of the floats 55, 56, 56 with the fertilizer hoses 62,. Guided to a guide (not shown),... Is dropped into a fertilization groove formed in the vicinity of the side portion of the seedling-growing strip by a grooved body 64,. The air generated by the blower 58 driven by the blower electric motor 53 is blown into the fertilizer hoses 62,... Via the air chamber 59 that is long in the left-right direction, and the fertilizer in the fertilizer hoses 62,. It is designed to be transported.

A drawing arm 67 is provided on both sides of the aircraft.
FIG. 3 shows a side view of the main part of the rotor support structure, and FIG. 4 shows a plan view of the main part of the seedling planting part 4. The rotor support structure is provided with a rotor vertical movement arm 81 whose upper end is rotatably supported by the support frame 65 of the seedling stage 51. The lower end of the rotor vertical movement arm 81 is rotatably supported by a second leveling rotation arm 75b described later via a connecting member 71.

  The rotor vertical movement arm 81 is provided on the support frame 65 and has a lower end attached to the second rotating arm 75b on the left side of the machine body. Accordingly, when the gear 80 moves, the rotor vertical movement arm 81 moves up and down.

  The suspension spring 78 of the center rotor 27 b is provided between a stay provided on the front side of the left rotor transmission case 73 and a stay provided on the top of the rotor vertical movement arm 81. There are a plurality of stays on the rotor vertical movement arm 81 side, which are selected and attached.

The vertical link 43 is provided on the inner side of the machine body than the gate-type support frame 65.
The vertical movement actuator 79 that moves the rotor vertical movement arm 81 up and down is operated when the seedling planting unit 4 is moved up and down, or when the seedling planting unit 4 is automatically turned up or reverse, and the seedling planting unit 4 is moved up and down. The vertical position of the leveling rotor 27 is automatically changed according to the movement. Further, during planting work (straight traveling), when a dial or the like provided in the control unit is operated, the vertical movement actuator 79 is activated and the leveling rotor 27 can be set to an arbitrary height.

  When turning or moving backward, the aircraft moves with the leveling rotor 27 approaching the field scene, and the leveling rotor 27 may cause the field scene to be damaged. The actuator 79 operates to raise the rotor vertical movement arm 81. Then, the left side rotor 27a is lifted, the right side rotor 27a is lifted around the leveling support frame 76, and the center rotor 27b is lifted via the left and right rotor transmission cases 73, 73. At this time, if the center rotor 27b is raised too much, the lower link arm 41 is distorted. Therefore, a contact roller (not shown) provided in the vicinity of the mounting stay of the spring 78 contacts the link arm 41, and the center rotor 27b becomes the side rotor. The posture is positioned below 27a.

  On the other hand, when the leveling rotor 27 is lowered, the leveling rotor 27 is lowered in accordance with the lowering stage of the seedling planting unit 4, and at the latest the seedling planting unit 4 is lowered to the working height and the seedling planting is started at the stage where seedling planting is started. 27 is lowered so as to begin leveling the farm scene (the transmission to the leveling rotor 27 is performed via the transmission shaft 72, but if the seedling planting part 4 is raised to a non-working height (about 30 cm), the transmission is If it is cut and lowered, the transmission is connected.)

  That is, as in the conventional configuration, the leveling rotor 27 also moves up and down as the seedling planting unit 4 moves up and down. However, in the conventional configuration, when the seedling planting unit 4 is raised or lowered to a predetermined height by a mechanical configuration, the leveling rotor In the present embodiment, when the seedling planting part 4 is raised or lowered to a predetermined height, the control device 100 operates the vertical movement actuator 79 to move the leveling rotor 27. It is configured to raise / lower.

  Further, as shown in the plan view of the main part of the seedling planting portion 4 in FIG. 4, a full leveling support frame 76 is provided in the traveling vehicle lateral width direction to support the rotor 27 (27a, 27b). Further, leveling rotation arms 75a and 75a for rotatably supporting the side rotors 27a and 27a are provided at both ends of the leveling support frame 76, respectively.

  The leveling rotation arm 75 is provided between the left and right first leveling rotation arms 75a that connect the left and right sides of the leveling rotor 27 and the leveling support frame 76, and the left and right first leveling rotation arms 75a. 27 (center rotor 27b, side rotor 27a) and left and right second leveling rotation arms 75b that connect the leveling support frame 76, and the left and right second leveling rotation arms 75b move the rotor 27b up and down. A device 77 is provided.

  Further, the power to the drive shaft 70a that rotationally drives the side rotor 27a is transmitted from the gear in the gear case 18 of each rear wheel 11 via the transmission shaft 72 for driving the rotor (FIGS. 1 and 4). The The output shaft 72 is provided toward the rear side of the machine body, the transmission shaft 72 is provided on the drive shaft 70a toward the front side of the machine body, and a driving force is transmitted from the transmission shaft 72 to the left and right side rotors 27a, 27a via the drive shaft 70a. And the transmission to the drive shaft 70b of the center rotor 27b.

  3 and 4, since the leveling support frame 76 supports the leveling rotor 27 (center rotor 27b, side rotor 27a) from the rear, the leveling rotor 27 (center rotor 27b, side rotor 27a) is in the field. Therefore, the leveling rotor 27 (center rotor 27b, side rotor 27a) can be prevented from being lifted against resistance and the unevenness of the field scene can be leveled without fail.

  Further, by supporting the leveling rotor 27 (center rotor 27b, side rotor 27a) with a single leveling support frame 76, the seedling planting unit 4 is lifted so that the leveling rotor 27 does not come into contact with the farm scene. Since the rotor 27 (center rotor 27b, side rotor 27a) can be prevented from sagging due to its own weight, the leveling rotor 27 (center rotor 27b, side rotor 27a) sagging during turning of the traveling vehicle body 2 or during non-planting work can be used in the field. It can be prevented from being damaged by touching the paddy field and roughening the field scene, and the seedling planting accuracy can be improved as compared with the conventional method.

  4, the leveling rotation arm 75 connects the center rotor 27b, the left and right side rotors 27a, 27a, and the left and right side portions of the leveling support frame 76. The left and right first leveling rotation arms 75a and the left and right first leveling rotation arms 75a are provided between the left and right first leveling rotation arms 75a and connect the rotor 27 and the leveling support frame 76 to the left and right second leveling rotation arms 75b. The second leveling rotation arm 75b is provided with a leveling vertical movement device 77 for moving the center rotor 27b and the left and right side rotors 27a, 27a up and down.

  As described above, the center rotor 27b, the left and right side rotors 27a, 27a, and the leveling support frame 76 are provided between the left and right first leveling rotation arms 75a provided on the left and right sides, and the left and right first leveling rotation arms 75a. Since the center rotor 27b and the left and right side rotors 27a, 27a are supported at a plurality of locations in the left and right direction by being connected by the left and right second leveling rotation arms 75b provided, the center rotor 27b and the left and right side rotors are supported by ground resistance. 27a and 27a are prevented from being lifted, and the leveling ability and seedling planting accuracy are improved as compared with the conventional technique. Further, by providing the leveling vertical movement device 77 on the second leveling rotation arm 75b, the center rotor 27b and the left and right side rotors 27a, 27a can be moved up and down at a position closer to the center of the traveling vehicle body 2. When the rotor 27b and the left and right side rotors 27a, 27a are moved up and down as a whole, the center rotor 27b and the left and right side rotors 27a, 27a are not fully lifted up and contact with the field scene. It is prevented from being damaged.

  A sliding mechanism 48 for sliding the seedling mount 51 on the seedling receiving member 47 is provided on the seedling receiving member 47. The sliding mechanism 48 has a configuration in which a rotating lead metal 47b is brought into contact with a lead cam shaft 47a having a groove. A lubricant supply device S for supplying a lubricant to the seedling planting section 4 and an operating motor 88 (shown only in FIG. 5) are provided on the seedling planting section support frame 65.

  The lubricant supply device S is shown in FIGS. 6 is a plan view of the seedling tank 51 portion, FIG. 7 is an enlarged view of the reserve tank 91 portion of FIG. 6, and FIG. 8 is a lubricant comprising the reserve tank 91, the lubricating oil pump 94, and the oil feeding pipes 90 and 93. 2 is a configuration diagram of a supply device S.

FIG. 5 shows a control block diagram of this embodiment.
The lubricating oil pump 94 composed of a pump operated by the operating motor 88 can be operated to supply the lubricating oil from the reserve tank 91 to each part of the seedling planting section 4 from the oil supply pipes 90 and 93. In addition, since the controller 100 operates the operating motor 88 when the conditions (a) to (c) below are satisfied, and the lubricant is supplied to the seedling planting unit 4, the seedling planting unit 4 is required. The lubricant can be supplied to various parts, specifically, the sliding placement part 96 of the seedling planting part support frame 65 that contacts the lower part of the seedling stage 51, the drive rotation shaft of the seedling feeding belt 51b, etc. This prevents malfunction and damage due to insufficient supply of lubricant.

Thus, it is not necessary for the worker, who has been conventionally performed, to manually supply the lubricant to each part of the seedling planting unit 4, and the maintainability is improved as compared with the conventional one.
The control device 100 (a) records the operation time T (for example, the time during key-on of the seedling transplanter, the time when the planting clutch 69 (shown only in FIG. 5) is entered, etc., and reaches the predetermined time, or (B) A work area S (for example, a travel distance by a travel meter (not shown), a travel distance calculated by a map / GPS information, etc.) is recorded and reaches a predetermined area S, or (c) a seedling The operating motor 88 can be configured to operate for a predetermined time by the number of times of sliding N of the base 51 reaching a predetermined number of times.

  As described above, the operation motor 88 is operated every predetermined time to operate the lubricant supply device S, thereby preventing malfunction or damage due to insufficient supply of the lubricant to a necessary part of the seedling planting unit 4.

  An operating member 89 such as a switch or a button for operating the operating motor 88 is provided near the seat 31. When the operating member 89 is operated, the control device 100 causes the operating motor 88 to be continuously or discontinuously ( And a control structure for stopping the operating motor 88 even if the operating member 89 is operated when a predetermined time has elapsed after the operating member 89 is operated.

Therefore, since the operator can supply the working oil (lubricant) to a necessary part of the seedling planting unit 4 at an arbitrary timing, the lubricant can be supplied at a necessary timing.
Further, even if the operation member 89 continues to operate, the operation member 89 stops after a predetermined time, so that it is possible to prevent the supply of excess lubricant due to the failure of the operation member 89 or the erroneous pressing of the operation member 89. Is reduced, and the lubricant is prevented from flowing into the field.

  When the operation member 89 is operated, the configuration for initializing the operation conditions for the operation including the operation time T, the operation area S, or the number of sliding times N of the seedling stage 51 recorded in the control device 100 is controlled. The apparatus 100 is provided.

Specific examples of the operating conditions are as follows.
(A) Working time T = Time when the seedling transplanter is working (eg, during key-on or planting clutch is “ON”) When this time is recorded in the control device 100 and the lubricating oil may be insufficient When the predicted time (for example, 4 hours) elapses, the control device 100 operates the operating motor 88 and supplies a predetermined amount of lubricating oil.

(B) Work area S = Area where the seedling transplanter performed work (example: calculated by the number of rotations of the planting transmission shaft or the number of rotations of the rear wheel rotation sensor and the number of steering of the steering wheel)
When this area is recorded in the control device 100 and becomes an area where the lubricating oil is predicted to be unpredictable (eg, 10 counter ≈ 100 are), the control device 100 activates the operating motor 88 to supply a predetermined amount of lubricating oil. Supply.

(C) Number of sliding times N = Number of times the seedling platform 51 moves from left to right end When this number reaches a predetermined number, the control device 100 operates the operating motor 88 to supply a predetermined amount of lubricating oil.

  If the operating member 89 is operated to supply the lubricating oil before the above conditions are satisfied, the lack of lubricating oil is eliminated. However, if the above operating conditions are satisfied in this state, an excessive amount of lubricating oil will be supplied, and the lubricating oil may adhere to the field and seedlings and become contaminated. Even when the lubricating oil is biodegradable and harmless, there is a problem that the consumption of the lubricating oil increases.

  Therefore, when the operation member 89 is operated, that is, when the operation member 89 is manually operated, the necessary conditions of the seedling planting unit 4 are initialized by initializing the operation conditions for the work recorded in the control device 100. Therefore, it is possible to prevent the supply of the lubricant to be performed in a short period of time, thereby preventing an increase in consumption due to excessive supply of the lubricant and preventing contamination due to the lubricant flowing out into the field.

  As shown in the plan view of the seedling tank in FIG. 6 (a) and the side view of the seedling tank in FIG. 6 (b), a reserve tank 91 in which lubricating oil is stored is disposed on the rear surface of the center portion of the seedling tank 51, and the reserve tank 91 is provided at an intermediate portion between the oil feeding tubes 90 and 93, and a pump 94 is connected to the oil feeding tube 90. Lubricating oil is sent from the reserve tank 91 between the seedling receiving plate 47 and the seedling tank 51 from a discharge nozzle 92 provided at the tip of the oil feeding tube 90.

  The discharge nozzle 92 is provided in six or seven places in the lateral width direction of the seedling tank 51, and the lubricating oil can be sent out toward the nozzle 92 at an appropriate place by changing the oil supply tube 90 attached four or five. Further, as shown in FIG. 8, since a partition plate 95 is provided for partitioning the inside of the reserve tank 91 into four or five chambers, a certain amount of lubricating oil in the reserve tank 91 partitioned by the partition plate 95 is injected into the nozzle. Since the oil is fed onto the seedling receiving plate 47 from 92, the lubricating oil is uniformly supplied to all the nozzles 92 without being supplied to some of the nozzles 92. In particular, even if the seedling transplanter is traveling in an inclined state due to the topography of the field, all the nozzles 92 are supplied with an average amount of lubricating oil without any problem.

  FIG. 7 shows a vertical cross-sectional view of a portion where the lubricating oil is distributed from the reserve tank 91 to the plurality of oil feeding tubes 90. As shown in FIG. 8, a joint 101 and a branch oil feed tube 93 connected to the joint 101 are provided at appropriate positions of the oil feed tube 90, a nozzle 92 is provided at the tip of the branch oil feed tube 93, and the nozzle 92 is attached to the bearing 102. It becomes possible to send lubricating oil to the bearing 102 by making it face.

In this way, the lubricating oil can be supplied to a necessary location without providing an excessive number of oil feeding tubes for supplying the lubricating oil.
As shown in FIG. 8, the lubricant supply device S includes a lubricant tank (reserve tank) 91 that stores lubricant, a discharge nozzle 92 that discharges lubricant, and a lubricant oil pipe that moves the lubricant discharged from the discharge nozzle 92. (Oil supply tube) 90 and a discharge pump 94 that discharges the lubricant from the reserve tank 91 by a predetermined amount, a plurality of partition members (partition plates) 95 are arranged inside the reserve tank 91, and a lower part of the reserve tank 91 In addition, one more discharge nozzle 92 is attached than the partition member 95.

  By partitioning the inside of the reserve tank 91 with the partition member 95, the same amount of lubricant enters each portion partitioned by the partition member 95, so that substantially the same amount of lubricant is supplied to the plurality of discharge nozzles 92. The amount of lubricant sent to the necessary part of the seedling planting part 4 can be prevented from becoming unbalanced and insufficient, and the part of the seedling planting part 4 can be partially worn. Is prevented.

  In addition, as shown in a partial plan view of the seedling tank 51 in FIG. 9A and a partial side view of the seedling tank 51 in the arrow AA view in FIG. 9A in FIG. A through hole 99 is provided in the longitudinal direction of a sliding mounting portion 96 (a member attached to the seedling receiving plate 47) that supports and slides the bottom portion of the seedling tank 51. By providing an oil hole (not shown) connected to the through hole 99 on at least one of the side surfaces, the lubricating oil can be manually supplied from the oil hole toward the through hole 99.

  When there is a foldable attached seedling tank at at least one of both ends of the seedling tank 51, the attached seedling tank may be folded to expose the oil hole and the lubricating oil may be pushed through the oil hole.

  The planting clutch 69 (shown only in FIG. 5) is turned on and off electrically. Further, the operation of the HST 23 is performed by the HST electric motor 115 (FIG. 5). If it is determined that the operation position of the HST lever 103 is on the reverse side, the planting clutch 69 is disengaged.

  When a planting transmission shaft (not shown) in the seedling planting transmission case 50 rotates forward, the planting clutch 69 is engaged, and the seedling planting device 52 can plant seedlings only at this time. HST is a switch that detects that the operation position of the HST lever 103 is on the reverse side when the planting clutch 69 is engaged and the planting transmission shaft operates on the reverse side. If the adjustment of the lever position sensor 111 is not good, the planting clutch 69 cannot be disconnected and the seedling planting device 52 is damaged.

Therefore, when the operation position of the HST lever 103 is determined to be on the reverse side, the seedling planting device 52 is prevented from being damaged by automatically disengaging the planting clutch 69.
In the case where the planting clutch 69 is turned on and off electrically, if the operation of the HST 23 is electric and the position of the HST trunnion arm is on the reverse side, the HST lever 103 is in the neutral position within the HST lever guide 110 shown in FIG. When the position sensor 111 located at a position moving from the rear to the reverse position detects the HST lever 103, the planting clutch 69 is disengaged by the planting clutch electric motor.

  In addition, it can also be set as the structure which cuts the planting clutch 69 using an HST lever potentiometer (not shown). That is, when the lever potentiometer detects an operation amount (angle change) of the HST lever 103 that can be regarded as “reverse operation” from “neutral (approximately 0 degrees)”, the control device 100 determines that the operation is reverse, and the planting clutch electric motor The motor 108 is operated. It is a configuration.

  This is because the planting clutch 69 is engaged when the planting transmission shaft (not shown) is on the forward side as described above, and the seedling planting device 52 can plant seedlings only at this time. Therefore, if the adjustment of the HST lever position sensor 111 that detects the operation position of the trunnion arm is not good, even if the planting clutch 69 is engaged and the planting transmission shaft 49 is operated backward, The planting clutch 69 cannot be disconnected, and the seedling planting device 52 is damaged.

  Therefore, when it is determined that the operation position of the HST lever 103 is on the reverse side (or when it is determined that the position of the HST trunnion arm is on the reverse side), the planting clutch 69 is automatically disconnected. This prevents the seedling planting device 52 from being damaged.

  When the planting clutch 69 is turned on and off electrically using the on / off switch 113 and the operation of the HST 23 is carried out electrically, two rotation sensors 112 are provided on the planting transmission shaft 49 to move forward or backward. Monitor for any forward or reverse rotation.

  When the control device 100 determines that the rotation of the planting transmission shaft 49 is on the reverse side by the input of the rotation sensor 112, the planting clutch 69 is disengaged. When the planting clutch 69 is engaged and the planting transmission shaft 49 is operated in the reverse direction, the seedling planting device 52 is damaged. However, if the on / off switch 113 or the rotation sensor 112 of the planting clutch 69 is not properly adjusted, Even if the HST lever 103 is on the reverse side, it is possible to prevent the planting clutch 69 from being disconnected and the seedling planting device 52 from being damaged.

  As shown in the auxiliary transmission lever guide 109 in FIG. 11, an “in-situ planting” detection switch 105 is provided next to the auxiliary transmission lever 104 for planting seedlings while the vehicle body 2 is stopped. The HST 23 is provided with a lever potentiometer (not shown) that detects the operation amount of the HST lever 103 that is electrically controlled, and the HST 23 has a trunnion arm (not shown) that changes the opening of a trunnion shaft (not shown) of the HST 23. (Not shown), an HST electric motor 115 that rotates the trunnion arm, and an arm potentiometer (not shown) that detects the amount of rotation of the trunnion arm. The control device 100 controls the HST lever 103 detected by the lever potentiometer. The HST electric motor 115 is operated in accordance with the operation amount, the trunnion arm is rotated until the arm potentiometer detects a predetermined rotation amount, the opening of the trunnion shaft of the HST 23 is changed, and the output is increased or decreased (including stop), In this configuration, the traveling direction is switched.

  When the HST lever 103 is in the neutral position, the HST trunnion is in the neutral position, and the float is installed (the float elevation sensor 106 detects almost 0 degrees), the “spot planting” detection switch 105 is activated. After detecting this, the planting clutch 69 is engaged by the planting clutch electric motor 108. When it is detected that the planting clutch 69 is engaged, the HST trunnion is output to the forward side, and the seedling planting device 52 is turned. Thereafter, the planting clutch 69 is disengaged to bring the HST trunnion to the neutral position.

  With the above-described configuration, the seedling planting device 52 can be rotated on the spot by one operation of the auxiliary transmission lever 104 at the heel to prevent the seedling planting position from shifting. Further, although all the operations of “sub-transmission device → planting clutch engaged → HST advancement → planting clutch disengagement → HST neutrality” have been performed manually, this can be automated.

  In the above-described configuration, in the process of operating the sub-shift lever 104 from HST forward → planting clutch off → HST neutral, the seedling planting claw 52a of the planting device 52 is between the disengagement of the planting clutch 69 and the neutral of HST23. Secure enough time for one revolution.

  In the prior art, if the HST 23 is neutralized immediately after the planting clutch 69 is turned off, the seedling planting claw 52a may not stop at a fixed position. The stop position of the seedling planting claw 52a can be stabilized.

  Moreover, in the said structure of a present Example, you may ensure time for the seedling planting nail | claw 52a to rotate twice during HST advance-> planting clutch cutting. This is because in the prior art, there is a possibility that the seedling from the seedling tank may not be scraped off depending on the stop position of the previous seedling planting claw 52a only by rotating the seedling planting claw 52a once. It eliminates problems and stabilizes planting of seedlings.

  In the configuration of the auxiliary transmission lever guide 109, after the planting clutch 69 is turned off and the HST 23 is neutral, the planting clutch 69 is automatically re-entered after the HST 23 is determined to be neutral. In the prior art, after controlling “spot planting”, the vehicle often travels with the planting clutch 69 forgotten, but this embodiment prevents such a problem and “spot planting”. After the control, the planting operation can be carried out simply by traveling as it is without manually entering and operating the planting clutch 69.

In the configuration of the seedling transplanting machine, after detecting the “in-situ planting” detection switch 105, it may be configured to operate as follows. That is,
HST advance → planting clutch on → definite time elapsed → planting clutch off → HST neutrality.

  Thus, by operating the HST 23 prior to the rotation of the seedling planting claw 52a, the rotation speed at which the seedling planting claw 52a rotates once can be rotated at a desired speed from the start of the operation without gradually increasing. I can do it.

The above two control configurations “Sub-shift PTO → Planting clutch included → HST forward → Planting clutch disengaged → HST neutral”
2. “HST forward → planting clutch engaged → fixed time elapsed → planting clutch disengaged → HST neutral”
In FIG. 3, the trunnion is operated so that the HST 23 moves forward only while the “in-situ planting” detection switch 105 is detected.

  When the “in-situ planting” detection switch 105 changes from on to off, the operation of the trunnion and the operation of the planting clutch 69 are stopped. Thus, the seedling planting device 52 can be operated only at an arbitrary timing of the user.

  FIG. 12A shows a simplified side view of the step 35 portion on the vehicle body of the seedling transplanter of one embodiment of the present invention, and FIG. 12B shows a simplified plan view of the step 35 portion. By arranging in parallel a plurality of step plates 35a having a predetermined width inclined at a predetermined angle with respect to the plane, the space 35b becomes smaller, and it becomes difficult for the operator to see the field scene and the lower structure of the traveling vehicle body 2, A sense of security at the time of work increases and the appeal as a product improves from the past.

  In the seedling transplanting machine capable of “in-situ planting” while the auxiliary transmission lever 104 is manually operated and does not move forward and backward (in a neutral position), only the position for changing the stock between the seedlings is shown in FIG. It is good also as a structure performed by turning on / off of the switching operation detection switch 87a shown in the figure, or the detection of the switching operation detection sensor 87b between stocks.

  By changing the timing at which the operation signal is transmitted from the control device 100 to the planting clutch electric motor 108 in accordance with the above configuration, according to whether the stock switching operation detection switch 87a is turned on or off or the stock switching operation detection sensor 87b is detected. The on-time of the planting clutch 69 can be lengthened if the strain is small, and the on-time can be shortened if the strain is large.

  In the prior art, for example, comparing the planting of 37 strains / (tsubo) and 80 strains / (tsubo), the number of rotations of the seedling planting device 52 is almost twice, so the seedling planting device 52 can be used at the same time. If it is rotated, the rotation speed is not stable.

However, with the above-described configuration, it is possible to stabilize the rotation speed of the “in-situ planting” control by changing the rotation time of the planting device 52 according to the planting stock of seedlings.
Further, in the seedling transplanting machine capable of performing “in-situ planting” while the auxiliary transmission lever 104 is manually operated and does not move forward and backward (in a neutral position), a position for changing the stock between the above-described seedling planting If the distance between planting plants is smaller than a predetermined value, the inclination angle of the swash plate is increased by the trunnion arm, and if the distance between the plants is large, the inclination angle of the swash plate is decreased by the trunnion arm. By doing so, it is possible to stabilize the rotational speed of the “spot planting” control.

  INDUSTRIAL APPLICABILITY The present invention is applicable to a traveling vehicle in which a mower is mounted on a walking lawnmower or a tractor.

DESCRIPTION OF SYMBOLS 1 Riding type seedling transplanter with fertilizer device 2 Traveling vehicle body 3 Elevating link device 4 Seedling planting part 10 Front wheel 11 Rear wheel 11a Rear wheel drive shaft 12 Mission case 13 Front wheel final case 14 畦 Clutch lever 15 Main frame 18 Rear wheel gear case 18a Transmission shaft 20 Engine 23 Hydrostatic continuously variable transmission (HST)
27 (27a, 27b) Leveling rotor 31 Seat 32 Front cover 34 Handle 35 Floor step 36 Rear step 37 Rotor cover 38 Spare seedling stage 40 Upper link 41 Lower link 42 Link base frame 43 Vertical link 44 Connecting shaft 46 Elevating hydraulic cylinder 47 Seedling receiving plate 47a Lead cam shaft 47b Lead metal 48 Sliding mechanism of seedling stage 49 Planting transmission shaft 50 Seedling planting transmission case 51 Seedling stage (seedling tank)
51a Seedling outlet 52 Seedling planting device 53 Blower electric motor 54 Seedling feed belt 55 Center float 56 Side float 58 Blower 59 Air chamber 60 Fertilizer hopper 61 Feeding part 62 Fertilizer hose 64 Groove body 65 Seedling planting support frame 67 Drawing marker 69 Planting clutch 70 (70a, 70b) Rotor drive shaft 71 Connecting member 72 Leveling transmission shaft 73 Rotor transmission case 75 Leveling rotation arm 76 Leveling support frame 77 Leveling vertical movement device 78 Spring 79 Rotor vertical movement actuator 80 Fan gear 81 Rotor vertical movement arm 82 Reinforcement frame
85 Planting depth frame 86 Connecting rod 87a Stock changeover operation detection switch 87b Stock changeover operation detection sensor 88 Actuator (actuation motor)
89 Actuating members (switches, buttons, etc.)
90, 93 Oil feed tube 91 Reserve tank 92 Discharge nozzle 94 Lubricating oil pump 94 Discharge pump 95 Partition member (partition plate) 96 Sliding mounting portion (sliding plate)
97 Supply hole 98 Moving hole 99 Through-hole 100 Control device 101 Joint 102 Bearing 103 HST lever 104 Sub shift lever 105 “In-situ planting” detection switch 106 Float elevation sensor 108 Planting clutch electric motor 109 Sub shift lever guide 110 HST lever guide 111 HST lever position sensor 112 (planting) transmission shaft rotation sensor 113 planting clutch on / off switch 115 HST electric motor S Lubricating oil supply device

Claims (6)

A seedling planting part (4) is provided on the rear part of the traveling vehicle body (2) via the lifting link (3),
A seedling planting part support frame (65) is connected to the tip of the lifting link (3) to the seedling planting part (4),
A seedling receiving member (47) is attached to the seedling planting part support frame (65),
A seedling mounting base (51) slidable in the left-right direction of the traveling vehicle body (2) is mounted on the seedling receiving member (47),
Provided on the seedling receiving member (47) is a sliding mechanism (48) for sliding the seedling mount (51) on the seedling receiving member (47),
Wearing a seedling planting device (52) for taking seedlings on the seedling stand (51) and planting them in the field,
A lubricant supply device (S) for supplying a lubricant to the seedling planting part (4) and an operating actuator (88) for operating the lubricant supply device (S) are provided on the seedling planting part support frame (65). A seedling transplanting machine characterized in that a control device (100) for operating the operating actuator (88) is provided on the traveling vehicle body (2). The control device (100)
(A) Record the working time (T) and reach a predetermined time, or
(B) Record the work area (S) and reach a predetermined area, or
(C) The seedling transplanter according to claim 1, wherein when the number of sliding times (N) of the seedling placing table (51) reaches a predetermined number of times, the operating actuator (88) is operated for a predetermined time. An actuating member (89) for actuating the actuating actuator (88) is provided;
When the operating member (89) is operated, the operating actuator (88) is operated continuously or discontinuously, and when a predetermined time has elapsed after the operating member (89) is operated, the operating member The seedling transplanter according to claim 1 or 2, characterized in that the control device (100) is provided with a control configuration for stopping the actuating actuator (88) even when (89) is operated.   When the actuating member (89) is operated, the work including the work time (T), work area (S), or number of slides (N) of the seedling table (51) recorded in the control device (100). The seedling transplanter according to any one of claims 1 to 3, characterized in that the control device (100) comprises a configuration for initializing the operating conditions for. The lubricant supply device (87) includes a lubricant tank (91) for storing the lubricant, a discharge nozzle (92) for discharging the lubricant, and a lubricant from the lubricant tank (91) to the discharge nozzle (92). A lubricating oil pipe (90, 93) to be sent, and a discharge pump (94) for discharging the lubricant from the lubricant tank (91) by a predetermined amount,
A plurality of partition members (partition plates) (95) are arranged inside the lubricant tank (91),
The seedling transplanter according to any one of claims 1 to 4, wherein the discharge nozzle (92) is attached to the lower part of the lubricant tank (91) more than the partition member (95). Forming a sliding placement part (96) that slides with the seedling placing stand (51) while contacting the seedling placement part support frame (65) on the seedling receiving member (47),
A supply hole (97) for supplying a lubricant is formed in the slide mounting portion (96),
In the supply hole (97), a moving hole (98) for moving the supplied lubricant to the seedling planting part support frame (65) side is formed,
The seedling transplanter according to claim 5, wherein the lubricating oil pipe (90) is connected to the supply hole (97).

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