JPH03244324A - Soil leveling device - Google Patents

Abstract

PURPOSE:To rotate a press roller in the same direction as the seedling bed-carrying direction and simultaneously remove soil adhered to a brush by pivotally supporting the shaft of the rotating brush on an arm, supporting the shaft of the press roller on the tip of the arm and connecting the small diameter press roller with the rotating brush in a sliding state. CONSTITUTION:The driving shaft 11 of a carrying roller 12 for carrying a seedling- raising box 2 in the direction of A and the shaft 35 of a vertically movable rotating brush 33 are connected to each other through a supporting arm 36A, and the shaft 35 and the shaft 48 of a press roller 34 are also connected to each other through an arm 47. The rotating brush 33 is brought into contact with the press roller 34 in a slidding state to rotate the press roller 34 of a somewhat small diameter at a high rate and in the reverse direction compared with the rotating brush 33, whereby, while the rotation brush 33 is rotted in the reverse direction to the carrying direction of the seeding-raising box 2, soil 50 can be leveled, and whereby the soil can be leveled without being pressed backwardly because the press roller 34 is rotated at a constant rate in the same direction as the carrying direction of the seedling-raising box when the press roller contacts with the soil 50. Soil adhered to the tips of the rotating brush 3 are brushed off with the press roller 34.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a soil leveling device attached to a Shonin device for seedling raising boxes.

(Prior art) The top surface of the bed supplied into the nursery box using the Shonin device must be flat so that seeds can be sown accurately, and a rotating brush and a pressure roller are installed together. There is.

The conventional rotating brush and suppression roller are independently supported by separate frames and installed on the seedling box transport mechanism, and the rotating brush receives power from the seedling box transport mechanism and is driven to rotate around the horizontal axis. In contrast, the pressure roller only rotates in contact with the floor and is not driven.

(Problems to be Solved by the Invention) Since the rotating brush comes into sliding contact with the soil surface, soil may adhere to the tip of the brush, and this adhesion may grow and disturb the leveling effect.

In addition, since the pressure roller is rotated in contact with the soil surface, its resistance acts on the soil and may push the soil on the surface and bring it to the rear side of the seedling nursery box.

(Means for Solving the Problems) The present invention has a pressure roller in sliding contact with a rotating brush having a larger diameter, the pressure roller is forcibly driven by the rotationally driven rotating brush, and the pressure roller can be used as a seedling box. By rotating at a high speed to level the soil surface, all of the problems of the prior art described above can be solved.

That is, the specific configuration for solving the problem in the present invention is as follows:
A rotating brush 33 is provided on a horizontal brush shaft 35 that is rotatably driven in the opposite direction to the transfer direction (a) of the seedling raising box 2 and smooths the soil surface inside the seedling raising box 2, and a roller with a diameter smaller than this rotating brush 33 In a soil leveling device having a pressing roller 34 which is rotatably provided via a shaft 48 and compresses a surface of ±50, an arm 47 is pivotally supported on the brush shaft 35, and a roller shaft is attached to the tip of the arm 47. 48, and the pressing roller 34 is brought into sliding contact with the rotating brush 33.

(Function) The rotating brush 33 provided on the brush shaft 35 receives the power transmitted from the seedling box transfer mechanism 3, and rotates in the direction opposite to the direction of transfer of the seedling box 2 in the soil contact portion, thereby transferring the seedlings. box 2
Make sliding contact with the inner ±50 surface and make it flat.

The pressing roller 34 is an arm 47 that is pivotally supported on the brush shaft 35.
A roller shaft 48 is supported by the roller shaft 48, and is always in sliding contact with the rotating brush 33 even if it moves up and down relative to the rotating brush 33.
Rotational power is obtained from the frictional resistance of the brushes, and
Remove soil stuck to the tip of the brush.

Since the suppressing roller 34 has a smaller diameter than the rotating brush 33,
When there is no load, the rotating brush 33 rotates at a higher speed than the rotating brush 33, and its rotation direction is the same as the transport direction of the seedling raising box 2. When it comes into contact with the soil surface, due to the resistance, it rotates at the same speed in the same direction as the seedling raising box 2, and the surface Smooth the top without pushing it backwards.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 shows the entirety of the Shonin device 1, including a transfer mechanism 3 for moving the seedling growing box 2, a support frame 4 supporting the transfer mechanism 3, and a support frame 4 placed on the support frame 4. It has a soil machine 5, a soil leveling device 6, and a bed leveling device 7 arranged astride the transfer path of the transfer mechanism 3, and the transfer mechanism 3 and the support frame 4 are made longer in the front and back direction. It is also possible to construct a seeding device for above-bed feeding, irrigation, sowing, and soil covering by mounting a seeding machine and a watering machine.

In FIGS. 1 to 3, the support frame 4 includes two parallel U-shaped cross-sectional frames 9 and a plurality of foldable support legs 10.
Rotating shafts 11 forming the transfer mechanism 3 are supported on the frame 9 at equal intervals in the longitudinal direction.

The transfer mechanism 3 includes rollers 12 installed on the plurality of rotating shafts 11, a chain stretched between sprockets and throats provided at the ends of the rotating shafts 11, and transmitting power from the motor 14 to the intermediate rotating shafts 11. By driving the motor 14, the seedling growing box 2 placed on the rollers 12 can be moved at a constant speed in the direction of the arrow (A).

In the Dojin machine 5, a hopper 18 is mounted and fixed on a base frame 17 fixed on the frame 9, a soil supply mechanism 19 is disposed within the base frame 17, and the motor 14 is attached.

The soil supply mechanism 19 has a conveyor heel 21 wound between two rollers 22 and 23, and power can be transmitted to one of the rollers 22 from the transfer mechanism 3 via a chain transmission means 24. An upper guide plate 25 and a soil reflecting plate 26 are provided below the front of the roller 22 on the drive side.

28 is a means for holding down the seedling raising box 2 arranged below the soil supply mechanism 19, and a roller 30 is rotatably supported at the tip of a swinging arm 29 that is pivotally supported on the base frame 17.
The rollers 30 move over the side wall of the seedling box 2 that is being transferred on the rollers 12.
The seedling box 2 is prevented from vibrating due to the soil falling from the soil supply mechanism 19 by pressing and rolling.

The soil leveling device 6 includes a rotating brush 33 and a pressing roller 34 in a case 32 provided on the support frame 4.

The brush shaft 35 to which the rotating brush 33 is attached is connected to the rotating shaft 11.
The support arm 36A is rotatably supported via bearings at the tip of the support arm 36A pivoted to the case 32 or the support arm 36B pivoted to the frame 9. It is configured to transmit rotational power.

The brush shaft 35 has a horizontal axis located perpendicular to the transfer direction (a) of the seedling raising box 2, and passes through the case 32. The case 32 has a long hole 3 that allows the brush shaft 35 to move up and down.
9 is formed.

The bearing member 37 provided at both ends of the brush shaft 35 is provided with an upwardly protruding screw rod 40, and this screw rod 40 is connected to the case 3.
It penetrates the upper wall 32a of 2.

A first adjusting body 42 is screwed onto the upper part of the threaded rod 33, and by rotating the first adjusting body 42, the height of the rotating brush 33 can be finely adjusted.

Reference numeral 43 denotes a spring that presses down the bearing member 38, and is fitted into each of the left and right threaded rods 40.

A second adjustment body 45 is provided on the top wall 32a via a pivot 44 so as to be freely rotatable around a vertical axis. This second adjustment body 45 is formed with a plurality of stages of placing parts having different heights, and can be moved between the top wall 32a and the first adjustment body 42 by rotating, and can be freely retracted between the top wall 32a and the first adjustment body 42. By selecting , the height of the rotating brush 33 can be largely adjusted.

A pair of left and right arms 47 are pivotally supported on the brush shaft 35, and a roller shaft 48 is supported at the ends of the left and right arms 47, and the pressure roller 34 is rotatably supported on the roller shaft 48.

The pressure roller 34 has an outer diameter smaller than the outer diameter of the rotating brush 33, and its outer peripheral surface is in sliding contact with the rotating brush 33. The suppressing roller 34 and the rotating brush 33 are independently movable up and down, but because they are connected by an arm 47, the center-to-center distance is constant, and a stopper 49 provided on the support arm 36A or 36B is connected to the arm 47. By coming into contact with
The pressure roller 34 is regulated to not descend beyond a certain level.

The pressure roller 34 is in contact with the rotating brush 33 with an overlapping amount of, for example, about 2 to 3n. If it collides with the outer circumferential surface and there is soil attached, it will be dropped.

The sliding contact of the rotating brush 33 forces the pressing roller 34 to rotate in the same direction as the transfer direction (a) of the seedling raising box 2.
Since the rotary brush 33 has a larger diameter, the pressure roller 34 rotates faster than the rotary brush 33 when no load is applied. When this pressing roller 34 comes into contact with the ±50° surface, it receives resistance and its rotation slows down, but since it rotates in the same direction as the transport direction of the seedling raising box 2, the speed will not become slower than that speed. Since no resistance is applied to the 50 in the longitudinal direction, the 50 is not pushed backward in the transport direction.
It rotates at approximately constant speed and only compresses the upper surface.

The above-mentioned floor leveling device 7 is located in front of the soil leveling device 6, and is used to press down and level the front and rear raised portions 50a of the floor 50 whose surface has been smoothed by the rotating brush 33.

Note that the present invention is not limited to the above embodiments,
Various modifications can be made. For example, the roller shaft 48 may be rotatably supported on the arm 47, the stopper 49 may be provided on the arm 47 or the case 32, or the support arm 36 and chain transmission means 38 may be connected to the brush shaft 35 and the rotating shaft 11 in front of it. It's okay to set it up in between.

(Effects of the Invention) According to the present invention described in detail above, the arm 4 is attached to the brush shaft 35.
7, a roller shaft 48 is supported at the tip of this arm 47, and the suppressing roller 34 is in sliding contact with the rotating brush 33, so the suppressing roller 34 is always in sliding contact with the rotating brush 33 to prevent the brush tip from adhering. The soil can be brushed off, the rotating brush 33 can always perform a normal leveling action, and the pressing roller 34 is forcibly driven in sliding contact with the rotating brush 33, which has a larger diameter, so that its direction of rotation is fixed. Since it is in the same direction as the transport direction of the seedling raising box 2, the speed becomes approximately constant due to contact with the soil 50, and the pressing roller 34
Since no rotational resistance is applied, the pressure roller 34 can always perform a normal pressure smoothing action without moving backward on the surface.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a cross-sectional side view of the main part, FIG. 2 is a cross-sectional front view of the main part, and FIG. 3 is a cross-sectional side view of the entire Junin device. l--Join device, 2-seedling box, 3-transfer mechanism, 6 soil leveling device, 33--one-rotation brush, 34--suppressing roller, 35--brush shaft, 36--support arm , 47・
・・Arm, 48- Roller shaft, 49-・Stopper,
5o-Sat.

Claims (1)

[Claims] (1) The rotating brush (33) is installed on a horizontal brush shaft (35) that is rotated in the opposite direction to the transfer direction (A) of the seedling raising box (2) and smooths the soil surface inside the seedling raising box (2). )and,
In a soil leveling device having a pressure roller (34) which has a smaller diameter than the rotating brush (33) and is rotatably provided via a roller shaft (48) and compacts the surface of the soil (50), the brush shaft ( 35), an arm (47) is supported at the tip of the arm (47), a roller shaft (48) is supported at the tip of the arm (47), and the pressure roller (34) is brought into sliding contact with the rotating brush (33). Soil leveling equipment.