JPS601526Y2 - Seeding device - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a seeding device.

Conventionally, a seeding machine is equipped with a disc that rolls against the ground surface to form a seeding groove, a hopper that stores seeds, and a feed roll that sequentially drops the seeds in the hopper into the seeding groove. There is a seeding device connected to the rear of the
The amount of settlement of the disc is inconsistent due to unevenness of the ground surface or hardness and softness of the soil.

Therefore, since the depth of the seeding groove is not constant, the seeding depth varies, making it impossible to obtain uniform and good germination conditions.

The object of this invention is to develop a seeding device that can eliminate the above-mentioned drawbacks.

This device includes a disk forming a seeding groove, a hopper for storing seeds, a feeding roll that sequentially drops the seeds in the hopper into the seeding groove, and a drive grounding wheel that rotationally drives the feeding roll. The sowing machine is connected to a leveling plate that is vertically disposed at the rear of the rotary working machine and is biased downward by a pressure spring and can move up and down.

Therefore, since a seeding machine equipped with discs, etc. that can be fixed up and down as desired is connected to the leveling plate that advances while touching the ground surface, the amount of settling of the disc as it rolls through the soil after plowing is constant. A seeding groove with a constant depth is formed, thereby making the seeding depth uniform and achieving a uniform and good germination condition.

An embodiment of this invention will be described based on the drawings.

1 is a tractor body, and a rotary working machine 2 is connected to the rear of the tractor body 1 by a top ring 3 and a lower link 4.

The rotary working machine 2 includes a tilling section 8 which is rotatably driven by a PTO shaft 5 protruding from the rear end of the tractor body 1 via a power transmission shaft 6 and a transmission 7, and is biased downward by a pressurizing spring 9. A tilling cover 1 that covers the tilling section 8
The ground leveling plate 11 is also provided with a ground leveling plate 11 which is vertically and pivotally supported to be vertically movable.

Next, a bracket 12 is fixed to the leveling plate 11, and a distal end portion of a body 14 of a seeding machine 13 is connected to this bracket 12.

This body 14 is provided with a pair of left and right disks 15 arranged in a V-shape that expands toward the rear and rotatably supported by a holding rod 16 fixed to the body 14. There is.

Further, a hopper 17 for storing seeds is mounted on the machine body 14, and furthermore, at the bottom of this hopper 17, there is a delivery roll that sequentially sends out the seeds in the hopper 17 and causes them to fall from a guide pipe 18 located between the disks 15. 19 are provided.

Reference numeral 20 denotes a drive grounding wheel which rotationally drives the feed roll 19 via a transmission device 21 such as a chain, and also covers and compresses the seeding groove after seeding, and is urged downward by a spring 22.

The rear end of the ground leveling plate 11 is extended rearward and a sled part 23 is integrally connected thereto, and the center of the ground leveling plate 11 also includes the sled part 23 to prevent interference with the disk 15. A notch (not shown) is formed from the rear end to prevent this.

In addition, an adjustment rod 24 is provided between the body 14 of the seeding machine 13 and the ground leveling plate 11, so that the relative position between the leveling plate 11 and the disk 15, that is, the ground plane of the sled part 23 and the lower end of the disk 15, is adjusted. The sinking amount A of 15 can be adjusted.

In such a configuration, the tractor body 1 is advanced to tow the rotary working machine 2 and the seeding machine 13 while cultivating the tilling section 8.
to drive.

As a result, the soil is tilled, and the disc 15 rolls and sinks on the ground leveled by the leveling plate 11 to form a seeding groove.

Next, the seeds are fed out one by one or several seeds from the hopper 17 by the feed roll 19 and dropped into the seeding groove through the guide pipe 18, and then covered with soil by the driving ground wheel 20 to complete the seeding work.

At this time, since the body 14 of the seeding machine 13 is connected and fixed to the ground leveling plate 11, even if the leveling plate 11 and the seeding machine 13 move up and down along the uneven ground surface as shown in FIG. The relative position of the ground plate 11 with respect to the sled portion 23 does not change, and therefore the vertical position of the disk 15 with respect to the ground surface also does not change.

Therefore, regardless of the unevenness of the ground surface and the hardness or softness of the soil, the seeding groove formed by the disk 15 is kept at a constant depth.

In other words, the seeding depth is constant and a good and uniform germination condition can be obtained.

Furthermore, although the sowing depth varies depending on the type of seed, the sowing depth can be freely set by rotating the adjustment rod 24.

Since this device is constructed as described above, it is possible to always sow seeds at a constant depth regardless of the unevenness of the ground surface or the hardness and softness of the soil. It has advantages such as easy management, good threat protection, and extremely simple structure.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, with FIG. 1 being a side view and FIG. 2 being a partially enlarged side view showing the operation. 2... Rotary work machine, 9... Pressure spring, 1
1... Leveling board, 13... Seeding machine, 15 disk, 1
7...Hopper, 19...Feeding roll, 20...Drive grounding wheel.

Claims (1)

[Scope of utility model registration request] A seeding machine equipped with a disk forming a seeding groove, a hopper for storing seeds, a feeding roll that sequentially drops the seeds in the hopper into the seeding groove, and a drive grounding wheel that rotationally drives the feeding roll. A seeding device characterized in that the seeding device is connected to a leveling plate vertically disposed at the rear of a rotary work machine so as to be biased downwardly by a pressure spring so as to be movable up and down.