JPS6391005A - Structure of delivery roll driving part - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of a drive unit of a granular material delivery device that supplies granular materials such as seed f1 granular fertilizer to a field.

[Prior Art] A feed-out roll that is rotationally driven by a drive device is provided above a hopper that stores granular materials such as fertilizer, and the granular material is held in a recess formed on the outer periphery of the feed-out roll to rotate the feed roll. At the same time, a dispensing device that allows the pellets to fall downward is widely used. This type of granular material feeding device is used in China and Germany, or is often used by attaching a plurality of units to a power agricultural machine such as a rice transplanter and extracting the power from the power machine as the driving force.

[Problem to be solved by the invention] When this scale feeding device is attached to, for example, a 111 transplanter, it is convenient to use the driving force of the fungus inoculation rod as the driving force of the feeding roll. . 1' The planting rod swings upward while drawing an elliptical trajectory, and this driving force is transmitted to the driving part of the delivery roll as a swinging motion. For this reason, a ratchet mechanism is provided in the drive section to convert the swinging motion into intermittent rotational motion in a fixed direction, and this rotational force is used to rotate the delivery roll.

However, even if the drive shaft of the payout roll is rotated in only one direction via the ratchet mechanism, the swing motion is transmitted to the ratchet mechanism, so the drive shaft of the payout roll will not swing after the wad erupts. However, there was a problem that the feeding became unstable. If the feeding becomes unstable, it is not preferable because it causes variations in the distribution of particulate matter such as fertilizers supplied to the field.

[Step f for solving the problems] In order to solve the problems listed in F, the present invention has the following configuration.

That is, the structure of the driving part of the device for feeding out granular materials according to the present invention includes a feeding roll in a case in which a concave portion for holding the granular material is formed in the outer periphery, and the granular material is sequentially moved downward by rotation of the feeding roll. This is a structure of a payout roll drive part in a payout device configured to pay out to a user, and a clutch mechanism is interposed between the drive oil to which intermittent rotational motion is transmitted from the outside and the payout roll to disconnect the rotational power. In addition, the present invention is characterized in that a brake member is provided that receives the reaction force of the spring that always biases the clutch mechanism toward the meshing side and brakes the free movement of the drive shaft using shore friction force.

[Operation] When the clutch mechanism is turned on, the driving force of the drive shaft is transmitted to the delivery roll, and the granular material is delivered. At this time, the reaction force of the spring that biases the clutch mechanism toward the person J is acting on the brake member, so the drive shaft receives slight braking and is prevented from rotating in the opposite direction.

[Example] Hereinafter, the embodiments shown in the drawings will be described.

This granular material dispensing device 1 includes a feeding roll 5 housed in a main body case 3 attached to the F side of a hopper 2.

The feed roll 5 has a plurality of grooves (recesses) 7 along the axial direction on the outer circumference. - a grooved roll 9 formed at equal intervals, and a claw-like protrusion 8 that slidably engages with the groove 7 of the grooved roll.・・・
It is configured in combination with a claw roll 10 formed with .

The case 3 is composed of a case main body 3a, a shaft mounting frame 3b, and a clutch cover 3C, and both the main body 3a and the shaft mounting frame 3b have a protrusion 12 on the main body 3a side fitted into a groove 13 on the shaft mounting frame 3b side. Connect the hooks 15, . . . on the main body 3a side (two on the L side, one on the lower side, total 3) to the bins 16 on the shaft mounting frame 3b side.
By engaging with..., it is embodied. Further, at the opposite end of the main body 3a, a clutch cover 30 is attached with a hook 15 like the shaft mounting frame 3b. It is attached by ... and pin 16°...

A roll support shaft 20 is fixed to the shaft mounting frame 3b. The roll support shaft 20 is formed as a threaded shaft portion 20a which is attached to the case 3 and has a male thread cut on its base side or outer periphery, and its tip portion is formed as a support shaft 20b without a thread. The grooved roll 9 is fitted through a bush 21 to the portion of the support shaft 20b whose diameter is reduced in steps, and movement in the axial direction is restrained by a snap ring 22.

An adjustment member 25, which is integrally provided with teeth 1t23 and a cylinder 24, is screwed onto the screw shaft portion 20a. A pawl roller IO having an inward flange portion 10a is rotatably fitted to the outer peripheral portion of the cylindrical shaft 24 of the adjusting member 25. The pawl roller 10 is restrained from moving in the axial direction by a bush 28 and a presser plate 30 fixed with screws 29.

The roll support shaft 20 is formed as a hollow shaft, and is fitted into the hollow portion 20c via a drive shaft 35 or a bush 36 so as to be freely rotatable. A clutch member 37 constituting a clutch mechanism C is fitted onto the outer circumferential portion of the drive shaft 35 . The clutch member 37 is provided with a clutch pawl 39 that engages with a clutch member 38 formed at the end of the 11η grooved roll 9, and is fitted into a spline portion 35a formed on the drive shaft 35, and is connected to the drive shaft. On the other hand, it is supported in a state where it can move in the axial direction and its self-rotation is restrained. A groove-like recess 42 is formed in the clutch member 37, and is engaged with an eccentric pin 41 provided on an operating lever 40 for operating the clutch mechanism into and out. The clutch member 37 is constantly pressed by a spring 45 in the direction in which the clutch teeth 38 and the clutch pawl 39 engage, that is, in the direction in which the clutch mechanism C is turned on. By turning the eccentric pin 41, the clutch member 37 is moved backward, and the clutch mechanism C can be turned off by disengaging the two from each other. When the clutch teeth 38 and the clutch pawl 39 are engaged, the rotational motion of the drive shaft 35 is transmitted to the groove roll 9, and when they are disengaged, the transmission of rotational force to the groove roll 9 is cut off. , the feed roll 5 stops rotating.

The clutch lever 40 is composed of a handle portion 40a and a shaft portion 40b, and an engagement recess 40c is provided in the middle portion of the shaft portion 40b.
Recesses 40d and 40e for positioning are formed.

An end edge (T) of the latch cover 30, which is detachable from the case body 3a, is engaged with the engagement recess 40c to prevent the clutch lever 40 from coming off the mounting tube (S). There is. Note that the recessed portion 40d of the shaft portion 40b.

At the position 40e, a positioning device 76 for setting the "person" and "off" positions is attached, which has a ball 74 that fits into the recess and a pressing spring 75.

The rear end of the spring 45 is in contact with a washer 48 fitted to the drive shaft 35 via a high friction brake member 47 and a brake receiver 47a between the inner surface of the clutch cover 3c of the case 3 and the inner surface of the clutch cover 3c of the case 3. For this reason, the drive shaft 35 has a washer 4 days,
Together with the brake member 47, it is constantly pressed toward the brake receiver 47a, and is constantly subjected to slight braking due to the frictional force between the brake member 47 and the brake receiver 47a. This braking force is of such a magnitude that it does not interfere with forward rotation of the drive shaft 35, but restricts reverse rotation.

A discharge opening 5o is formed at the lower end of the case 3,
A funnel 51 is swingably attached to this portion by a shaft 52. A delivery pipe 55 is fitted into the lower end of the funnel 51 and is integrally provided with a branch pipe 53 that communicates diagonally upward to the outside.

An opening 60 is formed in a part of the side wall of the case body 3a, and a lid 61 is attached to this part by a shaft 62 so as to be openable and closable. A brush 63 is attached near this open part 60 to contact the outer circumferential surface of the feed roll 5 to level the surface of the granules held within the roll 7 and prevent them from falling off freely. The brush 63 is implanted in a support member 68 having a guide portion 66 that fits into a guide groove 65 formed in the case 3 and a screw 67 for fixing the guide portion.
When 1 is opened, it opens and can be easily attached and detached from the 1 part 60. In addition, at a position facing the brush 63, there is provided an anti-+h wall 3d which is provided close to the outer circumferential surface of the feed roll 5 and prevents free falling of granular materials.

i61 is formed to have a U-shaped cross section, and when opened, serves as a take-out gutter for taking out particulate matter inside the case 3 to the outside. Also, in the closed state, the same hook 15 and pin as above! It can be fixed at 6.

A pinion 70 that meshes with the tooth width 23 is supported diagonally below the surface tooth pattern 23 by @71. Binion 7
0 is formed as a tooth width having a length ζJ corresponding to the axial movement M of the tooth L23, and is suppressed and held by a spring so as to engage with a pin provided on the shaft 71 and rotate together with the shaft 71. By moving the shaft 711 against the spring, the shaft 71 is disengaged from the pin, and the center 23 can be rotated independently of the shaft 71.

This granular material feeding device! +7i tank 8 with mouth 1 transplanter 80
1? & It is installed in the position. In the illustrated example, there are four feeding devices 1. ... are supported in parallel by a support member 83', and two of them are simultaneously driven by a common drive shaft 35. The support member 83 is fixed to a planting device 85 that drives an old planting rod 86.

In addition, an output shaft 86a for driving the planting rod 86 of the planting device 85
The power from the drive shaft 35 is transmitted to a human power lever 89 of the drive shaft 35 by a connecting rod 87. This human lever 89 has a ratchet mechanism 9 that transmits rotational movement only in one direction.
0 to the drive shaft 35.

Next, how to use this granular material feeding device 1 will be explained. First, desired granular materials, such as seeds, fertilizers, medicines, etc., are charged into the hopper 2, and the rice transplanter 80 is operated. At this time, the movement of the output shaft 86a of the planting device 85 is caused by the connecting rod 87 to cause the lever 89 to swing in the L downward direction.
is transmitted through the ratchet mechanism 90 to intermittently rotate the drive shaft 35 only in one direction by a predetermined angle.

Since the drive shaft 35 is lightly braked by the action of the brake member 47, it does not rotate in the reverse direction even if the connecting rod 87 swings. For this reason, the feed roll 5 rotates intermittently in the direction of the arrow at a predetermined angle, thereby holding the granules 100 in the hopper 2 in the groove 7 and dropping them downward in appropriate amounts. The dropped granules 100 are stably supplied to the field through the funnel 51 and the delivery pipe.

When increasing or decreasing the supply amount of the granular material 100, use the handle 95.
to rotate the shaft 71 in either direction. @71
When the pinion 7o rotates, the pinion 7o also rotates as a body, so the gear 23 with which it is engaged also rotates, and the screw shaft portion 20
Move along a. For this reason, the engagement length between the protrusion 8 and the full 7 changes, and the length W of the groove 7, which serves as the four parts for holding particulate matter, changes, so that the ql of the particulate matter sent out from the hopper is adjusted.

In addition, the feeding of multiple granular material feeding devices 1 installed in parallel.
If you wish to adjust the
The gear 23 is exposed to the outside through the mounting frame 3b, and the mounting frame 3b has a scale 99, so this operation is easy. It is.

[Effects of the Invention] As is clear from the following description, the granular material dispensing device according to the present invention transmits rotational power between the drive shaft and the dispensing roll to which intermittent rotational motion is transmitted from the outside. A light braking force is applied to the drive shaft by using the reaction force of the spring that always urges the clutch mechanism toward the ``one person'' side, so it has a simple structure. This makes it possible to effectively prevent the drive shaft from rotating in reverse.

[Brief explanation of the drawing]

1 and 2 are side sectional views and rear sectional views showing one embodiment of the present invention, FIG. 3 is an external view thereof, FIG. 4 is an explanatory view of the feeding roll, and FIG. 5 is an illustration of the installed state. Explanatory diagram, FIGS. 6(a) and (b). (C) is an explanatory diagram of main parts. 1... Granular material feeding device 2... Hopper 3...
・Case 5...Feeding roll 7...Full 8・
...Protrusion 9...Groove roll 10...Claw roll 20...Roll support shaft 25...Adjustment member 4
5... Spring 47... Brake member C...
clutch mechanism

Claims (2)

[Claims] (1) A feed-out roll drive unit in a feed-out device configured to have a feed roll in a case with a recess formed on the outer periphery for holding the granules, and to sequentially feed the granules downward by rotation of the feed roll. The structure includes a clutch mechanism that connects and disconnects rotational power between the drive shaft to which intermittent rotational motion is transmitted from the outside and the delivery roll, and a spring that constantly biases the clutch mechanism toward the engagement side. A structure of a payout roll drive unit characterized by being provided with a brake member that receives a reaction force and brakes the free movement of the drive shaft using a frictional force. (2) The feeder according to claim 1, wherein the operating member for operating the clutch mechanism is prevented from slipping off by engaging with a clutch cover that is detachably provided to the case body that accommodates the feeder roll. Structure of the roll drive unit.