JPH0748016Y2 - Fertilizer application rate adjustment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a fertilizer application rate adjusting device for a fertilizer applicator.

(Prior Art) In the conventional fertilizer applicator, a connecting rod is provided between the output shaft on the planting part side and the input shaft on the fertilizer side, and the connecting position is adjusted by replacing the hole of the connecting rod with the fertilizer applicator side drive arm. It is done and metered.

(Problems to be solved by the invention) According to the above, since the connecting position is adjusted by replacing the hole of the connecting rod with the drive arm on the fertilizer applicator side, a tool is required for metering, and it is stepwise. The amount of fertilizer applied can only be obtained, and the amount of fertilizer applied cannot be adjusted from the front.

(Means for Solving the Problems) Therefore, the technical problem of the present invention is to obtain a fertilizer application device capable of easily adjusting the fertilizer application amount, and the technical means of the present invention for solving the technical problem. Is a connecting shaft (85) in the planting transmission case (20) on the planting part side and a crank (86) attached to the input shaft (68) on the fertilizer applicator side via a one-way clutch. The U-arm (88) is connected, and the connecting rod (87) is supported by a swingable swinging arm (92), and the swinging arm (92) has a pivot point (94) provided on the side of the fertilizer applicator. A fertilizer application rate adjusting device for a fertilizer applicator, which is characterized in that its position can be freely adjusted with a lever (100).

(Effect of the Invention) Since the device of the present invention is configured as described above, the transmission shaft in the transmission case on the planting part side and the crank attached to the input shaft on the fertilizer application side via the one-way clutch are the connecting rod and the U. Since the connecting rod is connected by the arm and the connecting rod is supported by the swinging arm, the position of the swinging arm's pivot point can be adjusted by the lever provided on the side of the fertilizer applicator, and fertilization is applied via the one-way clutch based on the vibration. The amount of fertilizer application is adjusted by changing the rotation angle of the crank attached to the input shaft of the machine, and therefore the amount of fertilizer application can be adjusted freely.

Moreover, since the amount of fertilizer applied can be adjusted with the adjusting lever, when the operator adjusts the amount of fertilizer applied by turning to the rear of the planting part, the operation is very easy and the conventional tools are completely unnecessary. There is a feature that does not.

(Example) Hereinafter, the Example shown in drawing is described.

First, the rice transplanter as a whole will be described.

Reference numeral (1) shown in FIG. 13 is a passenger car body, and a planting portion (3) is provided at a rear portion of the passenger car body (1) through a lift mechanism (2).
Are connected. The passenger body (1) has a mission case (5) attached to the rear of the body frame (4), and an engine (6) mounted on the body frame (4).
Below that is the front wheel (7).

Further, there is a transmission case (8) from the left and right sides of the mission case (5) toward the rear. At the rear end of the mission case (8) is the rear wheel (9). (10) is a driver's seat, (11) is a footstep, and (12) is a traveling handle.

A top link (14) and a lower link (15) are attached to the lift mechanism (2), and each link (14) (15) is swung by the expansion and contraction of a rod of a hydraulic cylinder (not shown) so that the planting part ( 3) can be raised and lowered.

In the figure, (16) shows a fitting for the link of the hydraulic cylinder.

The link frame also has a transmission case (8) with its mounting bracket.
Installed on.

The planting section (3) comprises a seedling table (18), a float (19) and a transmission case (20).

(21) is a marker and (22) is a float elevating lever.

What has the rotary planting claw used for the above-mentioned rice planting device of the rice transplanter is as follows.

That is, in FIG. 9, the input shaft (23) is rotatable with respect to the planted transmission case (20). A sun gear (24) is loosely fitted to the input shaft (23). However, it is fixed to the planted transmission case (20) through the sun gear phase adjustment member (25).

The sun gear phase adjusting member (25) changes the relative position of the sun gear (24) with respect to the planted transmission case (20).

A hollow split rotary case (28) is mounted on the end of the input shaft (23) and is fixed to the input shaft (23) by a bolt (29). An intermediate gear (30) (30) meshing with the sun gear (24) and having the same number of teeth as the sun gear (24) is rotatably provided on the rotary case (28) via an intermediate shaft (31). A planetary gear (33) having the same number of teeth as the sun gear (24) constantly meshing with the intermediate gear (30) on the intermediate shaft (31) will be described later on the cam shaft (32) as the planting shaft. It is fitted via a support member. These sun gears (2
4), the intermediate gear (30) and the planetary gear (33) are gears that are eccentric (e) from the center of rotation as shown in FIG.

The cam shaft is also attached to the rotary case (28) via the position adjusting member (34).

A support member (37) is fitted on the cam shaft (32), and the planting arm (38) and the planetary gear (33) are fixed to the support member (37). Then, the position adjusting member (3
By adjusting 4), the push-out timing of the push-out claw (47) in FIG. 10 is changed.

Reference numeral (39) is a bolt for fixing the planting arm (38) to the support member (37), which is inserted into a bolt hole of the planting arm (38), and (40) is a support member (37) and a camshaft (32). ) Is a bearing interposed between.

The cam shaft (32) is provided with a cam (41), and from the push arm (42) contacting the cam, the intermediate shaft (27)
The push rod (36) is driven through the spring (43) at the intersection of the push rod (36) and the cushion rubber (44) in contrast to this.

Therefore, the push arm (42) has a spring (43).
Energized with, cushion rubber (44) with planting arm (38)
Buffered against.

The push arm (42) is also pivotally supported by the shaft (45), and its end portion contacts the cam (41).

(46) is a planting claw, and (47) is the above-mentioned pushing claw, which is pushed by the push rod (36) driven by the push arm (42).

Now, when the rotary case (28) as a rotating body rotates in the direction of arrow A by the input shaft (23), which is its rotating shaft, in the direction of arrow A as shown in FIG. The intermediate gear (30) meshing with the gear (24) rotates in the direction of the arrow B along with the rotation of the rotary case (28) by the same rotation angle as the rotation angle of the rotation.

The planting arm support member (37) interlocking with the intermediate gear (30) through the planetary gear (33) causes the rotation of the intermediate gear (30) to cause an arrow C direction, that is, a direction opposite to the rotation direction of the rotary case (28). The planting arm (38) revolves around the drive shaft (23) depending on the posture facing the seedling mounting table, since the planting arm (38) rotates in this direction. When descending the side facing the plant from top to bottom, after splitting only one seedling from the seedling mat on the seedling mounting table (18) at the tip of the planting claw (46), at the lower limit of the descending field. The seedlings are planted on the surface and then rise from the field. The extruding claws (47) extrude the seedlings during planting, so the seedlings are planting claws (46).
Get away from.

By the way, as shown in FIG. 11, the sun gear (24), the intermediate gear (30), and the planetary gear (33) are both eccentric gears that are eccentric by an amount e. The support member (37) revolves along with the rotation of the, and the rotation of the support member (37) itself in the direction C is accompanied by the rotation of the eccentric gears (24) (30), (30) (33) during one rotation thereof. It is configured to be faster or slower than the rotation speed of the rotary case (28) due to the difference in meshing pitch radius with respect to the rotation axis in each meshing.

Therefore, the time when the rotation of the planting arm (38) in the C direction becomes slower than the rotation of the rotary case (28) is the time when the planting arm (38) descends so as to approach the field scene of the planting arm (38). On the other hand, each of the planting arms (38) is set closer to the field scene by setting the planting arm (38) so as to approach the field scene when the planting arm (38) rises from the planting position so as to approach the upper limit. When descending, it lags behind the rotation of the rotary case (28) in the C direction, slowly changing its own axis, changing its posture downwards by the revolution, and when rising to approach the rising upper limit after planting The rotation of the rotary case (28) As shown in FIG. 12, the closed loop of the movement locus of the claw tip is curved by one side and the other side is closer to a straight line because the closed loop of the claw tip moves a little more rapidly in the C direction and changes its posture. Oval closed It is a loop curve.

Further, in the rice transplanter having the rotary planting claws as described above, the concrete structure in which the planting arms are linked to each other and connected to the rotary case having the planetary gear mechanism and driven, As shown in FIG. 9, rotary cases (28) are provided on both sides of the transmission case (20), and the rotary case (28) and the planting arm (38) corresponding to the first row G are connected in the manner described above. The G-row planting arm (38) and the H-row planting arm (38) connect the connecting pipe (4
8) and (49) are connected, and the H-row planting arm (38) and the I-row planting arm (38) are connected by connecting pipes (50) and (51).

The I-row planting arm (38) and the arm connecting member (54) are connected to each other by connecting pipes (52) and (53), and are provided in the arm connecting member (54) corresponding to the sun gear (24). Support shaft (55)
Is supported by a support frame (57) extending from the machine body via a bearing (58).

The cam shaft (32) penetrates and supports the inside of these connecting pipes. However, the cam shaft (32) is attached to the arm connecting member (54) via the position adjusting member (34) as in the rotary case on the planted transmission case (20) side.

Further, as shown in FIG. 9 (b), only the cam shaft (32) may be fixed to the member (54) on the case using the bolt (62), and the pipe (52) (53). Is supported on the cam shaft (32) via a bearing (63).

A conventional rice transplanter in which a fertilizer is attached to the above planting apparatus is as shown in FIG. 5, and the same parts as those in FIG. 13 are designated by the same reference numerals.

As shown in FIG. 7, the fertilizer application unit (64) is composed of a tank (65) and a shooter (66), and a fertilizer application roll (67) is provided between the tank (65) and the shooter (66). The fertilizer application roll (67) has a perforated middle roll (67c) at the center of the upper and lower rolls (67a) (67b) with fan-shaped holes. This is for the bevel gear with the shaft (68) and the bevel gear that meshes with it. Driven by the shaft (77).

As shown in FIG. 8, a driven cam (73) is attached to an arm (72) extending from the fertilizer application frame (71) via a shaft (74). The driven cam (73) is constantly urged downward by a spring (75 ') wound around the shaft (74).

A connecting rod (75) is stretched between the driven cam (73) and the eye hole (69) of the rotating plate (70).
The stop position of the driven cam (73) can be changed by changing the position of the fertilizer roll (67) with respect to the eye hole (69).

In the figure, the driving roller (76) is attached to the arm connecting member (54).
The arm connecting member (54) is rotated together with the rotary case (28) to push up the driven cam (73) by the drive roller (76) to connect the connecting rod (7).
The rotating plate (70), that is, the drive arm is moved through the shaft (5), and the fertilizer roll (67) is opened through the shaft (68).

A drive cam is used instead of the drive roller, and a rotary case is used instead of the arm connecting member.

In addition, (78) in the figure is a seedling presser rod, (84) in FIG. 6 is a one-way clutch, which is similar to that in FIG.
0) is a planted transmission case, and (19) is a float.

According to the above, as shown in FIG. 8, the connecting position is adjusted and adjusted by replacing the hole of the connecting rod (75) with respect to the fertilizer application side drive arm (70).

In such a metering, a tool is required, and only the amount of fertilizer applied can be obtained in stages, and the amount of fertilizer applied cannot be adjusted from the front.

This plan is an improvement of this.First, the output shaft on the planting part side and the input shaft on the fertilizer application side are linked by a link mechanism, and the position of the pivot point of the swing arm attached to the connecting rod that constitutes this link mechanism is adjusted. This makes it possible to adjust the feed amount of fertilizer by changing the rotation angle of the input shaft of the fertilizer applicator.

FIG. 1 shows the device of the present invention, and the same parts as those in FIG. 8 are designated by the same reference numerals.

The intermediate transmission shaft (85) in the planted transmission case (20) and the crank (86) attached to the fertilizer-side input shaft (68) via the one-way clutch are the connecting rod (87) and the U (U).
It is connected by an arm (88), and (89) (90) (91) is its pivot point.

The connecting rod (87) is supported by the swing arm (92), and the swing angle of the connecting rod (87) that moves up and down with the rotation of the intermediate transmission shaft (85) is regulated by the swing arm (92). . (93) and (94) are the pivot points.

The pivot point (94) is supported by a short arm (95) and a long arm (96), and the short arm (95) extends from a frame (97) standing on the planted transmission case (20). The long arm (96) is pivotally supported by the shaft (99) arranged at the tip of the 98), and the long arm (96) is fixed to the rotating shaft (100).
Is pivotally supported (102) at the tip of the.

The rotating shaft (100) is rotatably supported by a stay (103) extending from the frame (97).
0) has a lever (104) on the side of the fertilizer applicator (64).
Is attached (see FIG. 3). (105) is the lever (10
The guide of 4), and a large number of recesses (105 ') for locking the locking projections (104') provided on the lever (104).
(See FIG. 3B).

In the fertilizer application rate adjusting device configured as described above, when the crank (86) reciprocates via the connecting rod (87) and the U arm (88) and the shaft (68) rotates intermittently via the one-way clutch, The bevel gear is driven to intermittently rotate the shaft (77) to intermittently rotate the middle plate (67c).

The upper fixed plate (67a) has arcuate eye holes (106) as shown in FIG. 2, and the lower fixed plate (67b) has left and right cutouts (107) (108). .

Since a large number of circular holes (109) are opened in the middle plate (67c), the fertilizer dropped from the hole (106) by the intermittent rotation of this middle plate is cut out (107) (108). It is designed to be transported to and dropped.

Therefore, the lever (104) disposed on the side of the fertilizer applicator (64) is rotated along the guide (105) to move the pivot point (94), and the moving width of the connecting rod (87). When is adjusted, the notch rotation width of the middle dish (67c) is changed and the fertilizer application amount is adjusted.

As described above, since the fertilizer application amount is adjusted by the lever (104), the amount adjustment is easy, and the amount adjustment can be continuously changed along the guide (105) without being stepwise. It is possible to adjust the fertilizer application rate for all rows by operating one).

In the embodiment, the fertilizer applicator tank (65) is provided as close to the center of the fertilizer applicator (64) as possible to reduce the moment of inertia of the entire planting apparatus.

Therefore, the fertilizer passage (65 ') provided below the tank (65) has a shape offset from its central axis so as to enclose the rotary case (28) (see FIGS. 3 and 4).

In addition, the fertilizer roll (67) is arranged at the same height as the rotary case (28), the distance between the fertilizer roll (67) and the field is shorter than that of the conventional one, and the rice transplanter is stopped.
The time lag required for the fertilizer to fall when starting is reduced to eliminate uneven fertilization.

The fertilizer roll (67) and the groove (110) are formed by a conical integrally formed discharge chute (111) to make the flow of fertilizer smooth.

That is, in the conventional fertilizer applicator, as shown in FIG. 7, the tank (65) and the working groove are communicated with each other by a shooter (66) made of a flexible pipe, etc. There was a large time lag until the rice fell on the ground in the field, and it was necessary to install a screw in the shooter to ensure fertilization.

However, as in the present embodiment, the discharge chute (1) is integrally formed between the fertilizing roll (67) and the groove portion (110) in a conical shape.
By forming in 11), without requiring a special mechanism such as a screw, the flow of fertilizer is smoothed, the time lag required for stopping the rice transplanter and dropping the fertilizer when starting is reduced, and fertilizer unevenness is eliminated. did. In addition, maintenance performance such as cleaning is improved by the integral molding.

[Brief description of drawings]

1 (a) and (b) are front views showing the device of the present invention in different operating states, FIG. 2 (a), (b), (c), and (d) are exploded views and assembly views of the eye plate, and FIG. (A) is a side view of the fertilizer applicator, (b) is an enlarged view of the guide, Fig. 4 (a) is a rear view of the fertilizer applicator, (b) is a side view and perspective view of the discharge chute, and Fig. 5 Is an overall view of the fertilizer transplanter, FIG. 6 is a partial view of the same fertilizer application section, FIG. 7 (a) (b) is a sectional view of the tank, and FIG. 8 (a) (b) is a conventional fertilizer application section. , Partial view of the drive part, Fig. 9 (a) and (b) are plan views and partial views of the unit type rotary rice transplanter, Fig. 10 is a partial view of the rotary case, and Fig. 11 is an operation explanatory view of the rotary case, FIG. 12 is a claw locus diagram of the rotary case, and FIGS. 13 and 14 are a front view and a plan view of the rice transplanter. (20) …… Transplanted case (28) …… Rotary case (38) …… Armored arm (64) …… Tank (67) …… Plate (85) …… Rotary output shaft (87) …… Connecting rod (92) …… Swing arm (94) …… Swing arm pivot (104) …… Lever

Claims (1)

[Scope of utility model registration request] 1. A transmission shaft (85) in a planting transmission case (20) on the planting part side and a crank (86) attached to an input shaft (68) on the fertilizer application side via a one-way clutch are connecting rods ( 87) and the U arm (88), and the connecting rod (87) is supported by a swingable swinging arm (92).
The pivotal fulcrum (94) of the swing arm (92) is positionally adjustable by a lever (100) provided on the side of the fertilizer applicator, which is a fertilizer applicator adjustment device.