JPH0729781Y2 - Drive mechanism of fertilizer applicator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a drive mechanism of a fertilizer applicator.

(Prior Art) In the conventional crank type four-joint arm drive fertilizer applicator as disclosed in Japanese Utility Model Laid-Open No. 63-26214 and Japanese Patent Laid-Open No. 60-16519, the grooving device is located outside the planting arm. The fertilizer is applied to the outside of the planted seedlings.

Then, the fertilizer drive arm of the link device for driving the feeding roll is attached to the driven arm.

(Problems to be solved by the invention) As described above, when the fertilization drive arm is attached to the driven arm, the fertilization drive arm comes to the outside of the planting transmission case, and is lateral to the planting transmission case. Since it shifts in the direction, it becomes very narrow between the hopper located next to it.

When the link mechanism comes in this way, it is difficult to insert the hands between the hoppers to maintain the seedlings and remove the remaining seedlings.

Therefore, the object of the present invention is to obtain a drive mechanism of a fertilizer applicator that facilitates maintenance of seedlings.

(Means for Solving the Problem) The present invention provides the following drive mechanism for a fertilizer applicator in order to achieve the above objects.

That is, the driven fulcrum shaft of the crank type planting arm is provided by extending the shaft of the planting transmission case from the planting transmission case on the side opposite to the side where the driven arm of the planting arm is mounted. A fertilizer application arm is provided in the middle, the fertilizer application arm is configured to drive the fertilizer feeding roll through a link mechanism, and the link mechanism is a long arm pivotally supported by the connecting rod, and is pivotally supported by the long arm, and It consists of a short arm and a long arm that are pivotally supported by the frame, and an input arm that is pivotally supported between the short arm and the long arm so that the link mechanism is located at the center of the planting transmission case and the grooving device is inside the planting arm. Is a drive mechanism of the fertilizer applicator.

(Operation) According to the present invention, the drive arm of the fertilizer feeding roll is attached to the middle of the driven fulcrum shaft of the crank type planting arm, and the fertilizer feeding roll is driven via the link mechanism.

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

First, a conventional fertilizer applicator will be described.

In FIG. 20, (1) is a passenger car body, which includes front and rear wheels (2) and (3) and is driven by an engine (4).

Behind the vehicle body (1), there is a planting part (5) via a link mechanism.

The planting section (5) is equipped with a fertilizer application section (6), which comprises a hopper (7) and a fertilizer hose (8), and is provided between the hopper (7) and the fertilizer hose (8). There is a fertilizer roll (9).

As shown in FIG. 19, the fertilizer roll (9) is a middle roll (9c) with a hole in the center of the upper and lower rolls (9a) (9b) with fan-shaped holes.
It is driven by a bevel gear having a shaft (10) and a bevel gear shaft (11) meshing with the bevel gear.

The shaft (10) is driven from the planted transmission case via a link mechanism.

In FIGS. 17 and 18, (12) is a planted transmission case, the drive shaft (13) of which drives a drive arm (15) of a crank type planted arm.

Reference numeral (16) is a driven arm for driving a four-joint arm of a crank type, and has a drive arm (17) of a link mechanism (18) for driving the above-mentioned feeding roll.

(16a) is a driven arm fulcrum shaft, and since the link mechanism (18) in the drive arm (17) as described above is on the side of the planted transmission case (12), a link is provided between the hoppers (7). Since the mechanism intervenes and shifts laterally with respect to the planted transmission case (12), the space between the hopper and the adjacent hopper becomes very narrow, and the hands are inserted from between the hoppers (7) to maintain the seedlings. It was difficult to remove the remaining seedlings.

In Fig. 20, (19) is a float and (20) is a seedling take-out plate.

Others In FIGS. 17 and 18, (14a) is a planting claw, (62) is a grooving device, and the grooving device (62) is provided outside the planting arm (14).

The present invention is an improvement over the above-mentioned conventional drawbacks. As shown in FIGS. 1 and 2, the driven fulcrum shaft (16a) of the crank type planting arm is opposite to the side on which the driven arm (16) is mounted. The drive arm (17) of the link mechanism (18) for driving the feeding roll is attached to the middle of the pair of left and right driven arms (16) (16), which is extended from the planted transmission case (12) and is shown in the figure. In this case, the planted transmission case (12) is bifurcated, and the driven fulcrum shaft (16a) is mounted between the two.

As described above, the fertilization drive is attached to the opposite side to which the driven arm (16) is attached, so that the link mechanism of the fertilization drive system is completely housed between the planting arm (14) and the planting arm (14). Since the feeding roll driven by the link mechanism is also housed between the planting arms, the grooving device (62) is provided inside the planting arm (14), and optimum crank efficiency can be secured.

Also, with the above-mentioned configuration, the link mechanism comes to the center of the planted transmission case (12), and therefore there is no link mechanism between the hoppers (7) and (7). It is easy to maintain the seedlings and remove the remaining seedlings.

Furthermore, the driven arm (16) and fertilizer drive drive the driven fulcrum shaft (16
The load balance for driving is good because it is distributed to the left and right of a).

The above is the configuration of the present invention, and subsequently, the relationship between the link mechanism and the feeding roll driven by the link mechanism will be described with reference to FIGS.

In FIGS. 3 and 4, (13) is the drive shaft of the rotary arm (15), (16) is the driven arm, and (16a) is its fulcrum shaft.

The fulcrum shaft (16a) has a fertilizer drive arm (1
7) is attached, and the fertilization drive arm (17) also rotates as the fulcrum shaft (16a) rotates.

(21) is a balance weight for the fertilizer application arm (17).

A connecting rod (22) is pivotally supported (23) on the fertilizing drive arm (17), and the upper end of the connecting rod (22) is connected to the long arm (2).
It is pivotally supported (25) in 4).

The long arm (24) is pivotally supported (27) on the short arm (26),
The short arm (26) is pivotally supported (28) on the frame (29).

In the middle of the long arm (24), an input arm (3
0) is pivotally supported (31), and the upper end of the arm (30) is pivotally supported (33) on the crank (32a) of the clutch (32) of the input shaft (34).

Therefore, when the rotary arm (15) rotates about the drive shaft (13), the driven arm (16) rotates about the fulcrum shaft (16a), and then the drive arm (17) of the link mechanism (18) swings. Move.

Next, with the short arm (26) adjusted to the long arm (24), the drive arm (17) is connected to the connecting rod (22).
Swings to move the long arm (24) up and down, further move the input arm (30) up and down, and reciprocate the input shaft (34) from the crank (32a) through the clutch (32).

In order to adjust the swing angle of the long arm (24) by changing the mounting position of the short arm (26) with respect to the long arm (24) and adjust the feeding roll, the pivot point (28) described above is used. Can be configured as follows.

That is, as shown in FIG. 9, the short arm (26) and the metering arm (73) are integrally mounted on the shaft (75) with the metering frame (74), and the lever (71) is pivoted. Supporting branch (2
2) is swingable with respect to the frame, and the tip of the lever (71) is screwed into and out of the metering arm (73).

Therefore, by rotating the lever (71), the short arm (26) integrated with the metering arm (73) moves up and down, and the position of the pivot point (27) can be changed to perform the metering. .
The manner of metering is shown in FIGS.

Since the feeding roll is driven as described above, the roll case will be described below with reference to FIGS.

The roll case (35) is connected to the hopper (7), and the planet which is supported by the gear case (37) at the uppermost part of the roll case (35) integrally with the case via the gear holder (36). There is an internal gear (38) of the gear device, a planetary gear (39) that meshes with the internal gear (38), and a sun gear (40) that meshes with the planetary gear (39) are inside the gear case (37).

The planetary gear (39) is driven via a connecting plate (42) by an inner hollow outer shaft (41) driven by a one-way clutch.

(43) is a sun gear shaft, which drives a discharge spring attached thereto to increase the speed. The delivery roll (9) described later is driven by the inner hollow outer shaft (41), but is not accelerated.

The output from the input shaft (34) drives the outer hollow outer shaft (46) via the one-way clutches (45) (45), and the inner hollow outer shaft (41) is further driven by a clutch described later. The sun gear shaft (43) is intermittently driven in one direction by the sun gear (40) from the planetary gear (39) driven by this.

There is a sun gear shaft (43) at the center of the inner hollow outer shaft (41),
The inner and outer hollow outer shafts (41) (46) are supported by a support cylinder (48) extending from the gear case (47) of the roll case (35).

The one-way clutches (45) (45) described above are provided between the support cylinder (48) and the outer hollow outer shaft (46).

A discharge spring (44) in the fertilizer hose (8) is attached to the sun gear shaft (43).

A handle (49) is mounted on the roll case (35) to operate the unit clutch.
When the outer hollow outer shaft (46) is driven by the one-way clutch (45) (45) from the above-mentioned input shaft (34), the power from this to the planetary gear (39) via the inner hollow outer shaft (41). Turn on / off the transmission of.

Thereby, the rotation of the feeding roll (9) is stopped.

The pin (50) operated by the handle (49) is inserted between the upper and middle guard plates (52) (53) of the clutch (51), and the handle (49) is rotated to rotate the clutch (5).
1) Move up and down.

The intermediate collar plate (53) of the clutch (51) is provided with a plurality of pins (54) protruding from the hollow outer shaft (4).
6) It is engaged with the slot (55a) of the collar ring (55) fixed to the flange ring (55) to transfer power from the hollow outer shaft (46) (41) to the planetary gear (39).
To rotate the sun gear shaft (43).

In addition, by rotating the handlebar (49) in the opposite direction to the previous operation to resist the spring (56) and raise the clutch (51), the pin (54) is fixed to the slot (55) of the collar ring (55). 55a), and power is not transmitted from the hollow outer shaft (46) to the hollow outer shaft (41), and thus is not transmitted to the planetary gear (39).

Therefore, the sun gear shaft (43) does not rotate.

The feeding roll (9) driven by the above drive system,
As shown in FIG. 12, the middle plate (9c) having the eye hole (61) is provided between the upper plate (9a) having the semi-circular hole 57) and the lower plate (9b) having the fan-shaped notch (60). is there.

Then, the inner plate (9c) is rotated by the inner hollow outer shaft (41).

As described above, the fertilizer feeding roll is driven from the driven fulcrum shaft of the crank type planting arm, and the fertilizer fed from the feeding roll (9) is discharged from the fertilizer hose (8). The tip of (8) faces the grooving device (62) as shown in FIG.

Then, as shown in FIG. 13, the tip of the hose (8) is formed into a bellows (63), and when this expanding / contracting portion is made tangential to the pivot (19 ') of the float (19), the float (19) is formed. )
The hose can be expanded and contracted smoothly against the swinging of the hose, and the hose is not twisted.

Further, as shown in FIG. 14, the elastic cap (64) is attached to the bellows (63) of the hose (8), and the cap (64) is fitted to the spray pipe (71) attached to the grooving device (62). When the support metal fitting (65) is integrally attached to the cap (64) and the lower end of the discharge spring (44) is supported by the grip portion (66) of the support metal fitting (65), the groove making device ( Since the cap (64) can be removed from the spray pipe (71) using the bellows (63) while the 62) is attached to the float (19), the discharge spring (44) supported by this can be removed. It can be done in a short time when replacing the parts in the roll case.

Further, the bellows (63) serves as a vibration absorbing material, does not generate vibration noise, and prevents damage to the hose and the like.

That is, the float moves up and down due to the unevenness of the soil surface.
This is because the bellows can absorb the shock caused by the vertical movement and a sudden push-up due to a lump of mud.

Furthermore, when attaching the discharge spring (44) to the sun gear shaft (43), the spring receiving cylinder (67) is attached to the sun gear shaft (43) as shown in FIG. 15, and the torque limiter is installed in the receiving cylinder (67). If the spring (68) is attached and the hook (68a) of this spring is engaged with the hook (44a) of the discharge spring (44), an abnormal load will be applied to the discharge spring (44) that is constantly rotating during fertilizer feeding. If torque is applied, the torque limiter spring (68)
When slipping in 7), power transmission is restricted, and an abnormal load is applied, the discharge spring (44) is not damaged, it is safe without imposing an excessive load on the drive unit, and the number of parts is also Small, simple, lightweight and compact structure ensures reliable spring operation.

In addition, if the float (19) is provided with an overhanging part (19a) behind the groover (62) mounting part as shown in Fig. 16 (a) and (b), the groove created by the groove should be covered immediately after fertilization. You can

Further, the float ground contact area is widened, and it is easy to cope with the rolling of the machine, and stable fertilization planting is possible.

In addition, a soil cover plate can be attached to the overhanging portion to further ensure soil coverage.

Furthermore, as shown in FIG. 4, the seedling placing table (69), the hopper (7), and the planting arm (14) are formed by forming a space (70) when viewed from the side, thereby forming a seedling placing table (69). The seedlings can be protected from direct sunlight.

That is, it is possible by overhanging the hopper (7) on the seedling placing table (69) in an umbrella shape.

It is also possible to prevent muddy water splashing from the planting arm from directly contacting the seedlings.

With the above configuration, it is possible to prevent the seedlings from drying, prevent the seedlings from slipping badly, and prevent the seedlings with mud.

(Effect of the device) According to the present invention, the driven fulcrum shaft of the crank type planting arm is attached to the side where the planting arm is mounted.
Since the fertilization drive arm is provided on the opposite side by extending the shaft from the planted transmission case, and the fertilization drive arm is provided between the pair of left and right driven arms of the driven fulcrum shaft, the fertilization drive system links and the like are all left and right. It fits between the planting arms and the feeding roll driven by the link mechanism also fits between the planting arms. It can be secured and a space can be secured between the hoppers, making it easy to maintain seedlings.

However, since the left and right driven arms are attached to one driven fulcrum shaft, there is no deviation in the driving of the left and right driven arms, which in turn causes no deviation in the driving of the pair of left and right planting arms. Since the pair of delivery rolls are also driven by one link mechanism, the fertilizer application amount on the left and right can be evenly distributed without variation.

Further, the driven arm and the fertilizer application drive are distributed to the left and right of the shaft, and the load balance for the drive is good.

Further, the link mechanism is composed of a long arm pivotally supported by a connecting rod, a short arm pivotally supported by the long arm, and an input arm pivotally supported between the short arm and the long arm. The driving relationship between the roll and the driven arm can be smoothly operated even if the feeding roll and the driven arm shaft are separated from each other in a largely detoured link state.

[Brief description of drawings]

FIG. 1 is a plan view of the device of the present invention, FIG. 2 is an explanatory view showing the relationship between a float, a hopper and the device of the present invention, FIG. 3 is a front view of a drive system, FIG. 4 is a partially enlarged view of the same as above, and FIG. Is an overall view of the fertilizer applicator, FIG. 6 is a rear view of the same as above, FIG. 7 is a sectional view of the roll case, and FIGS. 8 (a) and (b) are cross-sectional views of the roll case seen from a different direction from FIG. Explanatory drawing of the unit clutch, FIG. 9 (a) and (b) are front views of different operations showing the adjusting device of the link mechanism, and FIGS. 10 and 11 are operational explanatory views of the link mechanism, and FIG. 12 (a) (b) ) (C) and (D) are plan views of the cut surface of the feeding roll and each plate, FIG. 13 is an explanatory view of the boot portion, FIG. 14 is a cut surface view of the boot portion, and FIG. 15 is an explanation of the torque limiter spring. Fig. 16 (a) and (b) are explanatory views of the float, Fig. 17 is a plan view of a conventional fertilizer applicator, and Fig. 18 is a plan view of the drive system of the same as above. FIG. 19 is a sectional view of the hopper portion of the above, and FIG. 20 is an overall view of a conventional fertilizer applicator. (7) …… Hopper (12) …… Transplanted case (14) …… Planted arm (15) …… Drive arm (16) …… Driven arm (16a) …… Driven arm fulcrum shaft (17)… Link drive arm (19) Float (62) Groover

Claims (1)

[Scope of utility model registration request] 1. A driven fulcrum shaft of a crank type planting arm is provided by axially extending from a planting transmission case on the side opposite to the side where the driven arm of the planting arm is mounted, and a pair of left and right driven fulcrum shafts are provided. A fertilizer application arm is provided in the middle between the driven arms, and the fertilizer application roll is configured to be driven from the fertilizer application arm via a link mechanism. The link mechanism is a long arm or a long arm pivotally supported by a connecting rod. It is composed of a short arm and a long arm that are pivotally supported by the frame, and an input arm that is pivotally supported in the middle of the long arm so that the link mechanism is located at the center of the planted transmission case. The drive mechanism of the fertilizer applicator that has a grooving device inside.