JPH067762B2 - Granular material feeding device - Google Patents

Description

Description: [Industrial application] The present invention relates to a granular material feeding device suitable for use in supplying a granular material such as seeds and granular fertilizers to a field.

[Prior Art] A feeding roll, which is rotationally driven by a driving unit, is provided below a hopper that stores granular substances such as fertilizer and seeds, and the granular substances are held in a groove-shaped recess formed on the outer peripheral portion of the feeding roll. A feeding device is widely used in which the particulate matter is allowed to drop downward as the feeding roll rotates.

Since the supply amount of the granular material is determined by the volume of the concave portion of the feeding roll, the volume of the concave portion, that is, the feeding amount can be adjusted by engaging the claw-shaped projection with this groove-shaped concave portion and adjusting the engagement length. There are many things I did.

[Problems to be Solved by the Invention] By the way, in this type of feeding device, a plurality of units are mounted in parallel on a traveling vehicle body such as a rice transplanter and a tractor, and are used so as to simultaneously spray a plurality of articles of granular material. However, when trying to increase or decrease the supply amount of the granular material as a whole, it is necessary to adjust the feeding amount for each feeding device, so that the adjustment work is complicated and extremely inconvenient. there were.

[Means for Solving Problems] In order to solve the above problems, the present invention has the following configuration.

That is, the granular material feeding device according to the present invention is a combination of a groove roll having an axial groove formed on the outer peripheral portion thereof and a claw roll having a protrusion that slidably engages with the groove of the groove roll. And a feed roll that is rotatably driven by a drive unit, and an extension of a roll support shaft that supports the feed roll. The roll is provided so as to be axially movable so that the claw roll can be rotated. An adjusting member capable of adjusting the engagement length between the groove roll and the groove roll, an adjusting shaft provided along the support shaft of the feeding roll and driven to rotate from the outside, and fixedly and freely attached to the adjusting shaft. A pinion that meshes with a gear integrally provided with the adjusting member is provided.

[Operation] When the adjusting shaft is rotated from the outside, the pinion rotates, so that the gear meshing with the pinion rotates, and the adjusting member moves in the axial direction while rotating integrally with the pinion. Therefore, the claw roll moves in the axial direction, and the engagement length of the projection with respect to the groove of the groove roll changes. As a result, the volume of the groove, which is the concave portion, changes, and the amount of particulate matter held therein also changes.

When a plurality of feeding devices are installed side by side and the work is performed in common with the adjusting shaft, the feeding amount of all the devices can be adjusted at the same time by rotating one adjusting shaft. In this case, the pinion is fixed and free to the adjusting shaft, so that the fixing is released and the gears of the adjusting member are individually rotated to individually adjust the feeding amounts of the plurality of feeding devices. You can

[Examples] Examples described in the drawings will be described below.

The particulate matter feeding device 1 is configured such that a feeding roll 5 is housed in a main body case 3 attached to a lower side of a hopper 2.

The pay-out roll 5 has a groove roll 9 in which a plurality of grooves (recesses) 7, ... Are formed at equal intervals along the axial direction on the outer peripheral portion, and a claw shape slidably engaged with the groove 7 of the groove roll. It is configured in combination with the claw roll 10 on which the projections 8 are formed.

The case 3 is composed of a case body 3a, a shaft mounting frame 3b, and a clutch cover 3c. Both of the body 3a and the shaft mounting frame 3b fit a protrusion 12 on the body 3a side into a groove 13 on the shaft mounting frame 3b side, The main body 3a side hooks (two on the upper side and one on the lower side, three in total) 15, ... Are engaged with the pins 16 ,. A clutch cover 3c is provided at the opposite end of the body 3a to the shaft mounting frame 3
Like b, it is attached by hooks 15, ... And pins 16 ,.

The roll support shaft 20 is fixed to the shaft mounting frame 3b. The roll support shaft 20 is formed as a screw shaft portion 20a having a male thread on the outer periphery on the base side attached to the case 3, and a tip end portion thereof is formed as a support shaft 20b having no screw. The groove roll 9 is fitted through a bush 21 to the portion of the support shaft 20b having a stepwise reduced diameter, and the snap ring 22 restrains the axial movement thereof.

An adjusting member 25 having a gear 23 and a cylinder shaft 24 integrally provided therein is screwed into the screw shaft portion 20a. The claw roller 10 having the inward flange portion 10a is rotatably fitted to the outer peripheral portion of the cylinder shaft 24 of the adjusting member 25. The claw roller 10 is
Axial movement is restricted by the bush 28 and a holding plate 30 fixed by screws 29.

The roll support shaft 20 is formed as a hollow shaft, and the drive shaft 35 is fitted into the hollow portion 20c via a bush 36 so as to rotate freely. A clutch member 37 is fitted on the outer peripheral portion of the drive shaft 35. The clutch member 37 has a clutch pawl 39 that engages with a clutch tooth 38 formed at an end portion of the groove roll 9, and is fitted to a spline portion 35a formed on the drive shaft 35, and It is movable in the axial direction and is supported in a state where free rotation is restrained. The clutch member 37 is formed with a groove-shaped recess 42 with which an eccentric pin 41 provided on the clutch operating lever 40 is engaged. The clutch member 37 is pressed by a spring 45 so that the clutch teeth 38 and the clutch pawl 39 are engaged with each other, but the clutch operating member 40 is turned to cause the clutch member 37 to retreat and disengage from each other. Is able to. With the clutch teeth 38 and the clutch pawls 39 engaged, the rotational movement of the drive shaft 35 is transmitted to the groove roll 9, and when the engagement between the two is released, the transmission of the rotational force to the groove roll 9 is cut off. Feeding roll 5
Will stop spinning.

The rear end of the spring 45 is located at the clutch cover 3 of the case 3.
It is in contact with a washer 48 fitted to the drive shaft 35 via a brake member 47 having a high frictional force with the inner surface of c.

An opening 50 for discharging is formed at the lower end of the case 3,
A funnel 51 is swingably attached to this portion by a shaft 52. At the lower end of the funnel 51, a delivery pipe 55 integrally provided with a branch pipe 53 that communicates obliquely upward to the outside is fitted.

An opening 60 is formed in a part of the side wall of the case body 3a, and a lid 61 is pivotally attached to a lower part of this part by a shaft 62 so as to be vertically rotatable. Inside the opening 60, the granular material held in the hopper and in the groove 7 of the feeding roll is prevented from freely falling by coming into contact with the outer peripheral surface of the feeding roll 5, and the upper surface of the granular material in the groove 7 is prevented. A smoothing brush 63 is attached. The brush 63 is the case 3
The guide portion 6 slidably fitted in the guide groove 65 formed in the
6, and a supporting member 68 having a screw 67 for fixing the guide portion
A flexible hair 63a is planted in the
You can easily attach and detach from the opening 60 by opening the
When the lid 61 is closed, it is pressed by the lid 61 and positioned and fixed. A protection wall 3d is formed on the side facing the brush 63 to prevent the particulate matter from falling from this portion.

The lid 61 has a U-shaped cross section, and has side wall portions 61 on both sides.
a and 61a, and a bottom plate 61b is integrally formed at the lower end. In the state where it is rotated downward and opened, the end of the bottom plate 61b comes into sliding contact with the outer peripheral surface of the pay-out roll 5 and serves as a take-out gutter for taking out the particulate matter in the case 3 to the outside. There is. In the closed state, the hook 15 and the pin 16 can be used to fix the same. It is convenient to connect the brush 63 and the lid 61 with a connecting member so that the brush 63 can be pulled out together when the lid 61 is opened.

A pinion 70 meshing with the gear 23 is supported diagonally below the gear 23 by an adjusting shaft 71. The pinion 70 is formed as a long gear having a length L corresponding to the amount of movement of the gear 23 in the axial direction, and a flange 73 is formed at one end thereof. Further, the core portion of the pinion 70 has recesses 75 and 76 that are partitioned by a partition wall 74 in the front and rear direction.
Is formed, and a spring 77 that presses the metal plate 79 fixed to the adjustment shaft 71 and the partition wall 74 is provided in one of the concave portions 75. Further, the other concave portion 76 is formed as a pentagonal concave portion in a front view, and a pin 78 inserted into the adjusting shaft 71 is fitted therein. The pinion 70 is fixed by the pin 78 so as to rotate integrally with the adjusting shaft 71, but if the pinion 70 is moved in the direction of the arrow Y against the spring 77 and the pin 78 is pulled out from the recess 76, the pinion 70 is rotated. 70 becomes free from the adjustment shaft 71 and can be made to idle. In this state, the gear 23 can be freely rotated by hand.

The granular material feeding device 1 is attached to a rear position of the seedling tank 81 of the rice transplanter 80. In the illustrated example, four feeding devices 1, ... Are supported in parallel by a support member 83,
Two of them are driven simultaneously by a common drive shaft 35. The support member 83 is fixed to a planting device 85 that drives the seedling planting rod. The power for driving the planting rod 86 of the planting device 85 is generated by the connecting rod 87.
Is transmitted to the input lever 89. The input lever 89 is attached to the drive shaft 35 via a ratchet mechanism 90 that transmits rotational movement to only one side.

In addition, the four feeding devices 1, ... Are common to one adjustment shaft 71.
The adjustment member can be moved by. In the illustrated example, the adjustment members 25, ... Are attached so that they are all oriented in the same direction, so if these are screwed to the roll support shaft 20 with screws in the same direction (for example, right-hand screws), all four devices will be installed. It can move in the same direction at the same time. It is not necessary to mount all devices in the same orientation by preparing right-handed and left-handed screws.

Next, a method of using the granular material feeding device 1 will be described. First, desired granular materials, that is, granular materials such as seeds, fertilizers and chemicals are loaded into the hopper 2, and the rice transplanter 80 is operated. At this time, the intermittent movement of the planting device 85 is transmitted as vertical movement to the lever 89 by the connecting rod 87, and the drive shaft 35 is intermittently rotated by a predetermined angle in only one direction. Therefore, the feeding roll 5 rotates by a predetermined angle, and the granular material 100 in the hopper 2 is held in the groove 7 and dropped downward by an appropriate amount. Granular material 100 dropped
Is supplied to the field through the funnel 51 and the delivery pipe.

When increasing or decreasing the supply amount of the granular material 100, the handle 95
Causes the shaft 71 to rotate in either direction. Axis 71
When the pinion 70 rotates, the pinion 70 also rotates integrally, so that the gear 23 meshing with the pinion 70 also rotates, and the adjusting member 25 moves along the screw shaft portion 20a in the direction corresponding to the rotating direction. Therefore, the engagement length between the projection 8 and the groove 7 changes, and the length W of the groove 7 that serves as a concave portion for holding the granular material changes, so that the amount of the granular material sent out from the hopper is adjusted.

Further, when individually adjusting the feeding amount of the plurality of granular substance feeding devices 1, the pinion 70 of the feeding device is adjusted.
Then, the engagement between the shaft 71 and the shaft 71 is released, and the gear 23 may be manually rotated.
The gear 23 is exposed to the outside from the mounting frame 3b.
Since 3 and the mounting frame 3b have scales 98 and 99,
This operation is easy.

[Advantages of the Invention] As is clear from the above description, in the granular material feeding device according to the present invention, the gear is integrally provided on the adjusting member for adjusting the volume of the concave portion of the feeding roll, and the gear is provided from the outside. Since the pinion provided on the adjustment shaft that is rotated by the drive meshes, it is possible to adjust the feed amount at the same time with a common adjustment shaft even if multiple devices are installed side by side. Since the fixation of can be released, it is possible to adjust the feeding amount of each device individually, which is extremely convenient in practice.

[Brief description of drawings]

1 and 2 are side sectional views and rear sectional views showing an embodiment of the present invention, FIG. 3 is an external view thereof, FIG. 4 is an explanatory view of a feeding roll, and FIG. 5 is an explanation of an attached state. FIG. 6 (a), (b), (c) is a front view, sectional view, and
It is explanatory drawing of a meshing state. DESCRIPTION OF SYMBOLS 1 ... Granular material feeding device, 2 ... Hopper 3 ... Case, 5 ... Feeding roll, 7 ... Groove 8 ... Protrusion, 9 ... Groove roll, 10 ... Claw roll 20 ... Roll support shaft, 23 ... Gear, 25 ... Adjusting member 60 … Aperture, 61… Lid, 63… Brush 70… Pinion, 71… Adjustment shaft

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroaki Oishi Inventor Hiroaki Oishi 1400 Shinnobe, Beppu Town, Kakogawa City, Hyogo Prefecture Taki Agricultural Tool Co., Ltd. (56) References -30888 (JP, Y1)

Claims (1)

[Claims] 1. A combination of a groove roll having an axial groove formed on the outer peripheral portion thereof and a claw roll having a projection formed to slidably engage with the groove of the groove roll, and rotated by a driving means. It is provided so as to be screwed so as to be movable in the axial direction on an extension of a driven feeding roll and a support shaft that rotatably supports the feeding roll. By rotating this, the claw roll and groove roll of the feeding roll are provided. An adjusting member capable of adjusting the engagement length with the adjusting shaft, an adjusting shaft provided along the support shaft of the feeding roll and driven to rotate from the outside, and the adjusting member fixedly and freely attached to the adjusting shaft. And a pinion that meshes with a gear integrally provided with the pinion.