JP2561627C - - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a rolling hydraulic cylinder for keeping a planted portion horizontal by, for example, making support heights of right and left wheels different from each other with respect to an airframe. A transplanter. Conventionally, there has been a technique for planting seedlings by horizontally supporting a planting portion with respect to the ground. [0003] In the prior art, when the rolling hydraulic cylinder is automatically controlled to automatically adjust the planting posture at the time of planting work, when performing the ridge-side planting work, In addition, when hunting is prevented, there is a problem in handling such that an operator cannot perform a planting operation while manually performing horizontal adjustment. [0004] However, the present invention provides a rolling hydraulic switching valve for controlling the operation of the rolling cylinder, the rolling hydraulic switching valve including a rolling cylinder for maintaining the planting machine horizontal. In parallel with the automatic operation system via the unit, the rolling hand operation member installed in the operation operation unit is interlocked and connected, so that the operation operation unit enables horizontal control of the aircraft
The swing arm on one side of the valve link, which is attached to the fixed support shaft on the fuselage side
To the spool of the rolling hydraulic switching valve, and the engaging arm on the other side of the valve link.
Is engaged with the receiving cylinder via the elongated hole and the engaging arm, and the receiving cylinder is
Or, when it swings up and down counterclockwise, move the spool back and forth through the valve link
Lifting lever that switches the rolling hydraulic switching valve and operates the planting machine vertically
Is provided in the vicinity of the rolling hand operation member, the horizontal control of the cylinder can be performed by manual adjustment of the rolling hand operation member without interrupting the planting operation, and the rolling hand operation from the driving operation position can be performed. The planting process at the edge of the ridge can be performed by simple operation with the members, and the stepless inclination adjustment of the body is performed according to the ridge, so that the accurate ridge edge planting can be performed, and the work efficiency can be improved. Since the lifting lever is provided alongside the rolling hand operation member, both the rolling hand operation member and the lifting lever are provided in the driving operation unit, and each operation of adjusting the inclination and height of the machine is quickly performed according to the progress of the planting work. The planting posture operation system required during planting work can be concentrated and deployed at the operator's hand to improve the operability easily, and the tillage unevenness changes drastically In situ or Shenzhen change is large field in which the planting depth of the seedling can properly perform notwithstanding et planting kept substantially constant. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is an explanatory view of a rolling control unit, FIG. 2 is a side view of the whole, and FIG. 3 is a plan view of the same. In FIG.
2) is a transmission case, and (3) is a transmission case (2) to the transmission case (2).
4) The planting case connected continuously via (4), (5) is the engine (1) and each case (
2) (3) A bonnet covering the upper part of the rice transplanting machine constituted by (4), (6) a spare seedling mounting table provided on the rear upper surface of the bonnet (5), and (7) a seedling case (3).
(8) is a guide rail (8) above the handle (7).
9) A low and high seedling mounting table which is slidably mounted on the left and right via (10).
) Is a traversing shaft attached to the planting case (3) to traverse and drive the seedling mounting table (8);
(12) is a planting claw that is attached to the planting case (3) via a planting arm (13) to take out one plant seedling from the planting stand (8) and plant it; and (14) is the mission. A pair of left and right paddy wheels supported on the case (2) so as to be able to move up and down via a swing case (15), and (16) are connected to the swing cases (15) and (15) via left and right swing rods (17) and (17). Up and down hydraulic cylinders, which are cylinders for pitching for connecting and controlling the left and right paddy wheels (14) and (14) at the same time to move up and down the rice transplanter body, (18) is the engine (1) and each case (2) ( 3) (4) A flat float for leveling the planted rice field supported on the lower side via the front link (19) and the planting depth lever (20). (21) is a flat float for the planting claw (12). The front part of the float (18) according to the change in planting depth of seedlings A pitching sensor (22) for detecting the ascending and descending is disposed on the rear side of the float (18) behind the paddy wheel (14) to detect the inclination of the rice transplanting machine in the left-right direction and to level the rut (turn off the wheel marks). This is a flat sled plate type rolling sensor. As shown in FIGS. 4 and 5, the transmission case (2) is provided with a body frame (23).
), The engine (1) is connected and supported, the vertical hydraulic cylinder (16) is mounted on the body frame (23), and a pitching adjustment cylinder shaft is attached to the tip of a piston rod (24) of the cylinder (16). (25) Connect and fix the middle. Then, the middle of the rolling adjustment shaft (26) is rotatably inserted into the cylindrical shaft (25), and the rotation of the rolling adjustment shaft (26) reverses the pushing and pulling directions of the left and right swing rods (17) and (17). The ends of the swing rods (17) and (17) are connected to both ends of the shaft (26) via arms (27) and (27) so that the right and left inclination of the rice transplanting machine is corrected and the rolling is maintained substantially horizontal. Horizontal hydraulic cylinder (
28), and the cylinder (28) is attached to the cylinder shaft (25) by a bracket (29).
And a piston rod (30) of the cylinder (28) is connected to a rolling adjustment shaft (26) via an arm (31). Each of the shafts (25) is controlled by a vertical hydraulic cylinder (16). ) (26) is displaced by sliding in the longitudinal direction of the fuselage,
The right and left swing rods (17) and (17) are pushed and pulled in the same direction to elevate and lower the rice transplanting machine so as to keep the seedling planting depth substantially constant, while controlling the horizontal hydraulic cylinder (28) to control the rolling adjustment shaft (26). Is rotated to push and pull the left and right swing rods (17) and (17) in different directions so as to vary the support height of the left and right wheels (14) and (14), thereby supporting the rice transplanting machine substantially horizontally. I have. Further, a hydraulic unit case (for driving and controlling the vertical hydraulic cylinder (16))
34), the unit case (34) is fixedly mounted on one side of the transmission case (2), and via a connecting rod (35) and links (36) (37) which are reduced by a pressing force exceeding a set value. And the pitching sensor (21) is connected to the unit case (34), and the leveling float (1) is connected by the pitching sensor (21).
8) While detecting the vertical movement of the front part, the hydraulic cylinder (16) for up and down operation is automatically operated, and the arm () is provided to the vertical lever (38) which is a swing hand operation member provided on the steering handle (7). The pitching sensor (21) is connected to the vertical hydraulic cylinder (16) by a manual operation of the elevating lever (38). Next, a rolling sensor arm (41) for setting the lowest descent position by the descent restricting stopper (40) is provided, and the left and right rolling sensor arms (41), (41) are provided.
The left and right rolling sensors (22) and (22) are connected and fixed respectively to the rear end, and the left and right rolling sensor arms (41) and (41) are mounted on bearings (42) provided on the rear upper side of the transmission case (4). Are independently rotatably supported. A rolling hydraulic switching valve (43) for controlling the operation of the horizontal hydraulic cylinder (28);
The switching valve (43) is mounted on the rear upper side of the transmission case (2) by the base frame (4).
4) and a rolling fulcrum shaft (4) is attached to the base frame (44).
5), the center of the receiving cylinder (46) is supported, and the receiving cylinder (46) is swingable in the lateral direction of the machine.
46), and the input ends of the input links (48) and (48) are fixed to both ends of a core shaft (47) rotatably inserted into the receiving cylinder (46).
) And the input link (48) are connected to the rod (50).
The members (22), (41), (46), (47), (48), and (49) are formed symmetrically about the fulcrum shaft (45). A ground holding spring (51) is stretched between (3) and a spring (
51) The left and right rolling sensors (22) and (22) are pressed against the planted rice field respectively by means of (51), and when the right and left rolling sensors (22) move up and down in the same direction at substantially the same time, the left and right input links (48) ( 48) swings about the core shaft (47) to maintain the rolling hydraulic switching valve (43) neutral, while the left and right rolling sensors (22) and (22) move up and down in different directions or only one of them. At this time, the difference between the swing amounts of the left and right links (49) and (49) causes the rolling fulcrum shaft (45).
), The receiving cylinder (46) is swung, and the rolling hydraulic switching valve (43) is operated to drive and control the horizontal hydraulic cylinder (28). As shown in FIGS. 6 and 7, the rolling hydraulic switching valve (43) is provided with a spool (5).
2) The engaging portion (52a) at the tip has a long hole (53), and the fulcrum shaft (
An engagement arm (54) is fixedly mounted on one side about the fulcrum shaft (45), and the arm (54) is engaged and connected to the elongated hole (53). (46)
The spool (52) is moved forward and backward through the arm (54) by the vertical swing of the switch to perform the switching operation of the switching valve (43), and to the receiving cylinder (46) for transmitting the detection operation of the sensor (22). By directly connecting the spool (52), play is eliminated in the connection system between the receiving cylinder (46) and the spool (52), and the sensitivity of the sensor (22) and the accuracy of this rolling control are improved. ing. On the other hand, a rolling arm (55) is erected on a vertical line connecting the fulcrum shaft (45) of the receiving cylinder (46), and is provided on a panel plate (56) of the steering handle (7). A rod (58), a swinging L-shaped link (59), a rod (60), and a handle arm (6) are attached to a rolling hand operation lever (57), which is a rolling hand operation member.
1) interlockingly connect the rolling arm (55) through the operation lever (
57) When the lever is tilted left and right, the receiving cylinder (46) is forcibly swung up and down about a fulcrum shaft (45) to move the spool (52) appropriately and retreat, thereby supporting the respective supporting heights of the left and right wheels. And the body is tilted steplessly. (62) in the figure
Is a link fulcrum shaft for swingably supporting the L-shaped link (59) to the machine body side, (63) in FIG. 3 is a planting clutch lever, and (64) is a main clutch lever. As is apparent from the above, in a transplanting machine provided with a rolling hydraulic cylinder (28) for keeping the planting machine horizontal, a rolling hydraulic switching function as a rolling switching member for controlling the operation of the rolling cylinder (28). A steering handle (7), which is a driving operation unit, is connected to the valve (43) in parallel with the automatic operation system through a part of the automatic operation system.
Rolling hand operation lever (57), which is a rolling hand operation member installed in the section
And the driving operation unit enables horizontal control of the body, and the lifting lever (38) for lifting and lowering the planting machine is connected to the rolling hand control lever (57).
). The present embodiment is configured as described above, and the seedling mounting table (8) is reciprocated to the left and right, and seedlings of one strain are sequentially transferred from the seedling mounting table (8) by the planting claws (12). The plant is taken out and planted. The vertical hydraulic cylinder (16) is operated by operating the lifting lever (38).
The pitching sensor (2) is raised and lowered by raising and lowering the rice transplanting machine to change the direction at the edge of the ridge, and by raising and lowering the front of the leveling float (18) due to changes in the unevenness of the tillage.
1) Ascends and descends, the vertical hydraulic cylinder (16) operates, the rice transplanting machine ascends and descends, keeping the contact pressure of the leveling float (18) substantially constant, and the seeding depth of the planting claw (12). Is kept substantially constant. Also, when the rice transplanting machine tilts left and right due to a change in unevenness of the plow, the left and right rolling sensors (22) and (22) move up and down in different directions or only one of them, and the horizontal hydraulic cylinder (28) Operates to tilt the rice transplanting machine to the left and right to keep the rice transplanting machine substantially horizontal with respect to the surface of the planted rice field. During the operation, when the hand operation lever (57) is tilted rightward or leftward from the neutral position, the receiving cylinder (46) swings clockwise or counterclockwise around the fulcrum shaft (45). Moving the spool (52) into the retreating or advancing state to switch the switching valve (43).
The aircraft is forced to tilt left and right by controlling the support height of the right wheel (14) to be small or large, and the support height of the left wheel (14) to be large or small. The lever (57) is operated to forcibly tilt the airframe regardless of the sensor (22) even under conditions where the control of the sensor (22) alone does not maintain the complete levelness of the airframe on a tilled ground or the like. This allows the planting operation to be carried out at the same planting depth on the left and right while being held horizontally. Therefore, it is not necessary to install the existing ridge lever as in the related art, and the processing work at the ridge is simplified. As shown by the phantom line in FIG. 1, the rolling hydraulic switching valve (43a) is connected to the L-shaped link (59).
The rotation spool of the switching valve (43a) may be appropriately switched by rotating the center of the link (59) at the position. In FIG. 8, the receiving cylinder (46) is linked to a rolling hydraulic switching valve (43 b) via a valve link (65), and is turned around a fixed support shaft (66) on the machine body side. The spool (52b) of the switching valve (43b) is connected to a swing arm (65a) on one side of the valve link (65) movably mounted, and the valve link (65)
The other engaging arm (65b) is engaged and connected to the receiving cylinder (46) through the elongated hole (67) and the engaging arm (54a), and the receiving cylinder (46) is centered on the fulcrum shaft (45) as described above. )
Is configured to move the spool (52b) appropriately via the valve link (65) and switch the switching valve (43b) when it swings up and down clockwise or counterclockwise, and has the same operation as the above-described embodiment. It works. As is apparent from the above embodiments, the present invention includes a rolling cylinder (28) for keeping the planting machine horizontal, and a rolling hydraulic pressure changeover for controlling the operation of the rolling cylinder (28). A rolling hand operation member (57) installed in the operation unit is interlocked to the valve (43b) in parallel with the automatic operation system through a part of the automatic operation system, and the horizontal operation of the aircraft can be controlled by the operation unit. In the transplanter configured in
The swing arm (one side) of the valve link (65) that is rotatably mounted on the fixed support shaft (66)
6 5a) to thereby connect the spool (52 b) of the rolling hydraulic switching valve (43 b), Ba
Rub link (65) The other side of the engagement arm (65b) with the long hole (67) and the engagement arm
(54a) to engage and connect with the receiving cylinder (46), and the receiving cylinder (
When 46) swings clockwise or counterclockwise, the valve link (65)
The rolling hydraulic switching valve (43b) is switched by moving the spool (52b) forward and backward.
At the same time, the lifting lever (38) for raising and lowering the planting machine is operated by the rolling hand operation.
One obtained by parallel in the vicinity of the work member (57), it is possible to perform the horizontal control of the cylinder (28) by manual adjustment of the rolling-hand operating member without interrupting the planting work (57), operating Rolling hand operation member from operating position (57)
The planting process can be performed at the ridge by simple operation, and the inclination of the body is adjusted steplessly according to the ridge, so that the planting work at the exact right and left same planting depth at the exact ridge can be performed. This makes it possible to improve work efficiency, and furthermore, since the lifting hand (57) is provided with the lifting lever (38), both the rolling hand operation member (57) and the lifting lever (38) can be used. Is provided in the operation section, and each operation of tilt adjustment and height adjustment of the machine can be performed quickly according to the progress of planting work, and the planting posture operation system required during planting work is at hand of the operator. It is possible to improve the operability easily by intensively deploying, and to perform the planting work properly while maintaining the planting depth of the seedlings substantially constant even in a field where the unevenness of the tillage is drastically changed or a field where the change in depth is large What you can do That.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram of a rolling control unit. FIG. 2 is an overall side view. FIG. 3 is a plan view of the same. FIG. 4 is a partially enlarged plan view. FIG. 5 is a side view of the same. FIG. 6 is an explanatory view of a rolling switching valve section. FIG. 7 is an explanatory view of the same. FIG. 8 is an explanatory view showing another modified structure example. [Description of Signs] (7) Steering handle (driving operation part) (28) Rolling hydraulic cylinder (38) Lifting lever (43b) Rolling hydraulic switching valve (rolling switching member) (57) Rolling hand operation lever (rolling hand) Operation member)

Claims (1)

Claims: 1. An automatic operation system comprising a rolling cylinder (28) for maintaining a horizontal planting machine body, and a rolling hydraulic switching valve (43b) for controlling the operation of the rolling cylinder (28). In a transplanting machine, a rolling hand operation member (57) installed in the driving operation unit is interlocked and connected in parallel with the automatic operation system through a part of the operation unit, and the driving operation unit enables horizontal control of the aircraft. Pivotable on the fixed support shaft (66)
Rolling hydraulic pressure on the swing arm (65a) on one side of the valve link (65) attached to the
The spool (52b) of the switching valve (43b) is connected, and the other side of the valve link (65) is connected.
Of the receiving cylinder (65b) through the elongated hole (67) and the engaging arm (54a).
46), and the receiving cylinder (46) is rotated clockwise or counterclockwise around the fulcrum shaft (45).
When swinging up and down in the measuring direction, the spool (52b) is moved through the valve link (65).
The rolling hydraulic switching valve (43b) is switched by moving forward and backward, and the planting machine is raised.
Move the lifting lever (38) for lowering operation near the rolling hand operation member (57).
A transplanter characterized by being attached .