JPS6345856Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a feeding device for soil fertilizers, chemicals, seeds, etc.

A feeding device built into a working machine such as a seeding machine or a fertilizer spreader has a pair of male and female rolls on a rotating shaft, and one roll slides in the axial direction to adjust the opening of the feeding groove. The male and female rolls and the opening adjustment mechanism rotate integrally with a rotating shaft, and the rotating shaft is connected to the PTO shaft of the moving vehicle body or the ground of the working machine. It takes power from the wheels.

In order to increase work efficiency, a plurality of the above-mentioned working machines are usually attached to one mobile vehicle body to process a large number of ridges at the same time.In that case, the feeding device of the multiple working machines is It passes through the axis of the book and serves as the common rotation axis for all machines.

However, the number of ridges in the field is not necessarily a multiple of the number of working machines, and ultimately it is necessary to process fewer ridges than the number of working machines. In that case, it is necessary to stop feeding out some of the work equipment.

Therefore, in the conventional feeding device, a shutter is provided between the hopper and the hopper above the feeding device to stop the supply of the material to be fed from the hopper to the feeding roll. However, in such a shutter structure, even if the shutter is operated, the feeding of the material under the shutter and in the feeding groove of the feeding roll cannot be stopped, resulting in loss.

In view of the problems of the conventional device, the present invention provides a pair of male and female feeding rolls on a rotating shaft so as to be relatively rotatable, one roll and an opening adjustment mechanism are relatively rotatable, and the other roll is relatively rotatable. By providing a clutch mechanism between the rotary shaft and the rotary shaft to freely connect and disconnect the rotation of the rotary shaft to the roll, even if an opening adjustment mechanism is provided, the rotation of the feed roll can be stopped when not in use. It is an object of the present invention to provide a feeding device capable of completely and quickly stopping feeding of an object to be fed.

The features of the present invention for achieving this purpose include a female roll having a feeding groove on the outer periphery;
An opening adjustment mechanism in which a male roll having an adjustment piece fitted into the feeding groove so as to be freely advanced and retracted is provided on a rotating shaft, and one roll is slid in the axial direction on this rotating shaft to adjust the opening degree of the feeding groove. In a feeding device equipped with
The male and female rolls are freely rotatable on the rotating shaft, one of the rolls is rotatable relative to the opening adjustment mechanism, and the other roll is regulated in position in the axial direction with respect to the rotating shaft. Additionally, a clutch mechanism is provided between the rotary shaft and the rotary shaft to freely connect and disconnect the rotation of the rotary shaft to the roll.

Figures 1 and 2 show the overall configuration of a submerged direct sowing machine 1 to which the present invention can be applied. A float 4, a trench cutter 5, and a soil cover plate 6 are arranged.

The moving vehicle body 2 has an engine 7, drive wheels 8, a front float 9, and a handle 10, and is configured to be able to run on rice fields by itself, and has a mounting frame 11 fixed in a rearward projecting shape.
A plurality of seeding machines 3 are arranged in a horizontal row.
Further, at the bottom of the bracket 14 fixed to the mounting frame 11 corresponding to each seeding machine 3, a float 4 is provided so as to be movable up and down via a parallel link 15, and a support rod 16 extends rearward from the float 4. A soil cover plate 6 is provided at the rear end so as to be retractable upward and swingable from side to side, and a groove cutter 5 is provided midway therein so as to be vertically adjustable.

Reference numeral 17 denotes a bullet lowering mechanism, in which a horizontal shaft 19 is pivotally supported by a support plate 18 provided on the bracket 14, and a first arm 20 fixed to the horizontal shaft 19 is rotated through a sprocket 22 guided by a rod 21. Float pressure is applied to the float 4 by pressing the parallel link 15.

A pair of second arms 23 are provided at both ends of the horizontal shaft 19.
is fixed, and a pair of springs 24 are stretched between each second arm 23 and the left and right side parts of the soil covering plate 6, and the springs 24 apply ground pressure to the soil covering plate 6. . Also, this spring 24
is unstablely switched around the vertical swing pivot pin 25 of the covering plate 6, and can hold the covering plate 6 in the retracted position shown by the imaginary line in FIG. It is pulled with equal force on the left and right sides around the support pin 26, and is configured to be able to change direction following the change in direction of the float 4 and the groove cutter 5.

27 is an adjustment lever fixed to the horizontal shaft 19, 28 is an operating lever provided on the moving vehicle body 2, and both levers 2
7 and 28 are connected via a push-pull wire 29, and by rotating the operation lever 28, the arms 20 and 23 are simultaneously rotated via the adjustment lever 27 and the horizontal shaft 19, and the float 4 and the covering soil are connected. The ground pressure of the plate 6 can be adjusted at the same time.

Note that an agricultural tractor may be used as the moving vehicle body 2, and the seeding machine 3 may be attached to it via a three-point linkage mechanism.

An embodiment of the present invention will be described based on FIGS. 1, 3 to 7.

The seeding machine 3 includes a feeding device 33 and a feeding device 33.
The case 34 has a built-in hopper 35 at the top and a drop tube 36 at the bottom.
One or more sets are provided in one submerged seeding machine 1. Feeding device 33 of one set of seeding machine 3
are arranged symmetrically, and one rotating shaft 37 passes through the case 34, and power is transmitted from the engine 7 or the drive wheels 8 to this rotating shaft 37.

The rotating shaft 37 has a female roll 39 having a large number of feeding grooves 38 at equal intervals on its outer circumference, and
A male roll 41 having an adjustment piece 40 fitted into the feed groove 38 is fitted so as to be freely rotatable.
By relatively moving the adjusting piece 40 forward and backward, the effective seed storage range (opening degree) of the feeding groove 38 is adjusted, and the amount of seed feeding can be adjusted.

The female roll 39 is slidable in the axial direction on the rotating shaft 37, and is urged outwardly by a spring 42 provided between the female roll 39 and the male roll 41. Reference numeral 43 denotes a pushing body that is fitted onto the rotary shaft 37 so as to be slidable in the axial direction and is in contact with the male roll 39 so as to be relatively rotatable.The outer end side of this pushing body 43 has a male thread 43a on the outer peripheral surface. spline 43b on the inner peripheral surface
are formed respectively.

45 is a position regulating body fixed to the rotating shaft 37;
Reference numeral 46 denotes a rotating body which is rotatably fitted to the rotating shaft 37 or the position regulating body 45, and whose position in the off-axis direction is regulated by the position regulating body 45.
A female screw 47a is formed on the inner circumferential surface of the pusher 43, and is screwed into the male screw 43a of the pushing body 43. A male spline 48 is engaged with the spline 43b of the pushing body 43, and is fixed to the rotating shaft 37 to prevent the rotating body 37 from moving in the shaft direction.

The rotating body 46 has a large number of holes 4 arranged at equal intervals in the circumferential direction.
9 (or a recess), and the position regulating body 45 has a ball engagement member 50 that removably engages with the hole 49, and a coin spring elastic force that presses the engagement member 50 toward the hole 49. One or more sets of members 51 are provided. Reference numeral 52 denotes a stop plate made of an iron plate or spring steel that prevents the elastic member 51 from coming off.

The pushing body 43, the rotating body 46, and the position regulating body 4
5 and the like constitute an opening adjustment mechanism 53 for the male and female rolls 39, 41, and when the rotating body 46 is rotated against the elastic member 51, the rotation of the pushing body 43 is restricted by the male spline 48. It slides only in the axial direction. The female roll 39 is moved to the male roll 41 by the pushing force of the pushing body 43 or by the action of the spring 42.
The effective width of the feed groove 38 is adjusted by sliding against the feed groove 38.

60 is a clutch mechanism provided between the male roll 41 and the rotating shaft 37. A clutch disc 63 is fixed to the end of a boss member 62 fixed to the rotating shaft 37 via a roll pin 61, and a large number of holes 64 are formed in the clutch disc 63 at equal intervals in the circumferential direction.
(or a recess) is bored, and a press ring 65 is fitted around the outer periphery of the hole.

66 is screwed to the end face of the male roll 41.
It is a leaf spring, arranged in the radial direction,
A rivet-shaped engaging body 67 is provided at the outer end of each leaf spring 66 so as to face the hole 64 and can be freely engaged and disengaged. being oppressed. By engaging the engaging body 67 and the hole 64, the rotation of the rotating shaft 37 is caused by the boss member 62, the clutch disc 63, and the engaging body 6.
7 and the male roll 41 via the leaf spring 66, the rotating shaft 37 and the male and female rolls 39, 41 rotate together, and when the engaging body 67 is disengaged from the hole 64, only the clutch disc 63 rotates and the disc 63 rotates. Power transmission to the spring 66 and the male and female rolls 39, 41 is cut off, and the male and female rolls 39, 41 are connected to the rotating shaft 37 and the pushing body 43.
The relative rotation, that is, the rotation is stopped.

The engagement body 67 is disengaged by pressing the pressing ring 65 against the leaf spring 66 using the semicircular release arm 69. Reference numeral 70 denotes a clutch lever rotatably supported by a receiving member 71 fixed to the case 34, and a release arm 69 is fixed to the tip of the clutch lever. Thus, both ends of the release arm 69 push the press ring 65 at two points on its center line, simultaneously press the four leaf springs 66 toward the male roll 41, and disengage the engaging body 67 from the hole 64. 72 is a guide plate fixed to the case 34;
The clutch lever 70 can be held in the on/off position.

In the clutch mechanism 60, a friction plate may be provided on the leaf spring 66 and the clutch disc 63 instead of the engaging body 67 and the hole 64, and the boss member 6 may be provided with a friction plate.
2 is also used as a left and right feeding device 33 housed in one case 34, and in FIG. 4, it is symmetrical with respect to the center line 73. Further, each of the feeding devices 33 may be housed in an independent case 34, and a known technique may be applied to the opening degree adjusting mechanism 53.

According to the present invention described in detail above, a pair of male and female rolls 39 and 41 are provided on the rotary shaft 37 so as to be freely rotatable, and one roll 39 is made slidable in the axial direction so that the feeding groove 3
8, and a clutch mechanism 60 is provided between the other roll 41 and the rotating shaft 37 to connect and disconnect transmission of rotation from the rotating shaft 37 to the rolls 39 and 41. Therefore, even if the feeding roll is capable of adjusting the feeding amount, only the feeding rolls 39 and 41 can be stopped while the rotating shaft 37 is rotating, and feeding of the material to be fed can be completely and quickly stopped. The feeding device 33 is connected to one rotating shaft 37.
This is particularly effective for leaving some of the equipment unused when the equipment is being driven by the equipment.

[Brief explanation of drawings]

Fig. 1 is an overall side view of a submerged direct seeding machine to which the present invention can be applied, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is a cross-sectional view taken along the line -
7 to 7 show an embodiment of the present invention, FIG. 3 is a view taken in the direction of the arrow in FIG. 1, FIG. 4 is a vertical sectional view of the feeding device, and FIG. Figure, 6th
The figure is an exploded perspective view of the clutch mechanism, and FIG. 7 is a sectional view showing the clutch mechanism in a cut state. DESCRIPTION OF SYMBOLS 1... Reservoir direct seeding machine, 3... Seeding machine, 5... Groove cutter, 33... Feeding device, 37... Rotating shaft, 38...
...Feeding groove, 39...Female roll, 40...Adjustment piece,
41... Male roll, 43... Pushing body, 53... Opening adjustment mechanism, 60... Clutch mechanism, 63... Clutch disc, 65... Pressing ring.

Claims (1)

[Scope of utility model registration request] a female roll 39 having a feeding groove 38 on the outer periphery;
Adjustment piece 40 fitted into this feeding groove 38 so as to be freely retractable
An opening adjustment mechanism 5 is provided with a male roll 41 having a rotary shaft 37 on a rotating shaft 37, and adjusts the opening of the feeding groove 38 by sliding one of the rolls on the rotating shaft 37 in the axial direction.
3, the male and female rolls 3
9 and 41 are rotatably provided on the rotating shaft 37, one of the rolls is rotatable relative to the opening adjustment mechanism 53, and the other roll is rotatably mounted on the rotating shaft 37.
7. A feeding device characterized in that a clutch mechanism 60 is provided between the rotation shaft 37 and the rotation shaft 37 to freely connect and disconnect the rotation of the rotation shaft 37 to the roll.