JPS6030609A - Topsoil leveling mechanism of powder feeding device - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a topsoil leveling mechanism for a seeding device such as a direct sowing device for paddy field flooding.

In this type of 1fli seeding device, the sowing depth has a significant effect on the subsequent germination and growth of the seeds, so similar to a rice transplanter, there is a device on the underside of the machine that senses ground pressure fluctuations and moves the machine up and down. Equipped with a 70-meter controllable tote, seeds are sown into the seeding furrow formed by the furrower, and the soil covering the seeded furrow is leveled using a soil covering plate installed behind the furrower. In addition, the above-mentioned Flow I- is equipped with a sensitivity adjustment mechanism that adjusts the sensitivity of ground contact, which changes depending on the hardness and softness of the cultivated soil in the field, but the soil cover plate is only fixed in a constant state. , 11
No measures were taken to deal with the hardness and softness of the soil. For this reason, when working in a place where the cultivated soil is highly undulating, such as a headland, there is a problem that the soil is not sufficiently leveled with the soil covering plate, resulting in poor work accuracy.

Therefore, the present invention adjusts the soil-covering pressure of the soil-covering plate at the same time as the skin-grafting adjustment of the float. The aim is to provide a mechanism for this.

For this purpose, the present invention (11, Flow 1~ for controlling the vertical movement of the aircraft by sensing f fluctuations, a sensitivity adjustment mechanism for adjusting the ground pressure skin grafting of this float, and a method for forming a seeding groove). It is equipped with a leveling mechanism for covering the seeding groove with soil, and is equipped with a leveling mechanism located at the rear of the cropping groove and a leveling mechanism for covering the seeding groove with soil. The invention will now be described with reference to the illustrated embodiment, which is characterized in that it is constructed to be adjustable by less than 1°.

In the first embodiment of the present invention shown in FIG. 1 a3 and FIG.
This traveling vehicle body 1 is equipped with an engine 4 at the front, and a C seeding device 6 is attached to the rear via an elevating link 5 that moves up and down 1' by the expansion and contraction operation of a hydraulic cylinder (not shown). ing.

The seeding device 6 receives power from the traveling vehicle body 1 side through the bell 1 to the transmission system 8 () to a main body 71 nol\7 which also serves as a transmission case and is mounted on the lifting link 5 so as to be able to roll and pitch. A transmission case 9 is mounted above the main body frame 7. Transmission cases 11 and 11 are connected and supported at the ends of the connection frame 10 extending from the transmission case 9 to both left and right sides, respectively.

A seed feeding section 1 is provided on each left and right side of the transmission cases 9 and 11.
2.12 is hardened, and a seed hopper 13 and a seed guide tube 14 are installed in the upper part and the lower part of this seed feeding part 12, respectively. Power is transmitted from the main body frame 7 to the transmission case 9 by the bell 1 to the transmission system 15'11.The rotation shaft 16 of the belt transmission system 15 on the transmission case 9 side extends long left and right, It transmits power. In addition, the seed feeding portion 1 is also provided from the transmission cases 9 and 11.
J, where the power is transmitted to 2, is turned.

A support frame 17 is disposed in the front-rear direction at the bottom of the main body frame 7 and the transmission cases 9, 11, and a center float 18 serving as a lens float is attached to the support frame 17.
] The rear of the noid float 19.19 is attached to the bracket 1.
It is also pivoted via ~20. rental float 18
The front part is connected to the support arm 21 protruding from the main body frame 7 in the 1'+r+ direction by a dogleg-shaped link body, and the side part of each link body (32 hydraulic cutting valve 22 is installed, and the oil passage is switched by the vertical movement due to ground pressure fluctuation of the filler blade 1]-to 18.
J, which moves up and down, is a sea urchin. In addition, support arm 2
1, slide the lower end onto the top surface of Rental Flows 1 to 18! An LC sensitivity adjustment arm 2-3 is pivotally supported, and one end of an operating rod 24 having a long hole 248a3J: spring 241) is connected to the upper end of this sensitivity adjustment arm 23, and the other end of the operating rod 24 is , is connected via an operating wire 25 to a sensitivity w4 node lever 27 provided on the side of the control seat 26 of the traveling vehicle body 1. The tip end of the side float 19 is vertically supported by a bin 29 provided on the support frame 11 via an elongated link 28.

A furrower 30 is supported by the support frame 17 via a support member 31 and is disposed on both rear sides of the renter float 1-18 and the side float 19. The bottom end is exposed.

A rotary shaft 32 extending in the left-right direction is pivotally supported at the wide end of the support frame 17, and a covering leveling plate 33 is pivotally supported on the rotary shaft 32 in correspondence with each trencher 30. Covering soil leveling plate 3
A bottle 34 protrudes from one side of 3, and one end side of an operating rod 35 having a long hole 35a and a spring 351) is connected to the bottle 34, and the other end side of the operating rod 35 is connected to the bottle 34.
It is connected to the sense If lever 27 via an operating wire 25a. A return spring 36 is inserted between the upper end of the soil covering leveling k33 and the support frame 17.

In this type of seeding device for early spring cultivation, when introducing the seeding device into the flooded area III and performing seeding work, the seeding device 6 is lowered by the h1 descending link 5, and the floats 18 and 19 are brought into contact with the field surface. As it travels, it slides on the surface 111, and the rice seeds are fed out from the seed feeder 12 into the seeding groove formed by the furrower 30 on the leveled field surface, and the rice seeds are transferred to the seed guiding tube 14.
The topsoil is covered and leveled by the covering leveling plate 33.

During this sowing depth, the front part of the renter float 18 moves up and down due to changes in ground pressure with the rice field, and this up and down movement causes the hydraulic switching valve 22 to switch (f) via the lifting link 5 to the seeding device 6. The ground pressure of the float 18 is maintained at a substantially constant level by moving the float 18 downward by 1-1, and the seeding operation is performed at a substantially constant seeding depth.

The topsoil of l1liIs has hardness and softness, and this hardness and softness have J and m
) -(Difference in ground pressure fluctuation of center float 18 is 4
1-, so use the lever 27 to perform the @antiintersection. For example, when the ground is hard, the sensitivity adjustment lever 27 is rotated so that the sensitivity adjustment arm 23 suppresses and covers the center float 18 with a strong force, and the operation rod 24 is pulled via the operation wire ψ25. As a result, the vertical movement sensitivity of the float 18 becomes dull (at this time, the operation wire 725a is also pulled at the same time, the operation $1'35 is pulled, and the pushing force against the 111th surface of the soil covering leveling plate 33 becomes stronger). 1) i When the soil is soft,
Conversely, the operating wire 2''+ 25a is loosened, the pressing force of the sensitivity adjustment arm 23 against the float 18 becomes weaker, and the sensitivity of the vertical movement of the float 18 becomes more sensitive.
The pressing force of the soil covering leveling plate 33 also becomes weaker. Therefore, since the covering soil is leveled with strong force when the soil is hard on the karigami, it is easy to level the covering soil during normal sowing, and it is also possible to level the covering soil in places where the topsoil is highly undulating, such as headlands. It can be done evenly or well. If the tilled soil is soft, even if the soil is leveled with a weak force, the work can be done satisfactorily.

In the second embodiment of the present invention shown in FIGS. 3 and 4, the center float 18
The vertical motion sensitivity fil1 section was previously performed manually, but the manual operation mechanism has been completely abolished and this has been automated.

That is, the center float 1''-to 18d3 and the tip of the side float 19 have a lit Ql elastically supported on the tips of the floats, so that the rotation range automatically changes depending on the hardness (resistance) of the cultivated soil. A hard and soft sensor 37 was installed, and this range was 37 degrees, and the groove was pivoted between the groovers 30 and 30! The IJIIIliil 138 are connected by a link 39. The rotation shaft 38 has an insect holder 114.
The covering soil leveling plate 33a is installed () through 0, and the production: +a
It is located behind the +30.

In the seeding device having such a configuration, the hardness or softness of 171-J- is detected by the movement resistance of the hinge 37, and C1ff1 is detected by the rotation of the sensor 37 via the link rod 39.
The rotation shaft 38 rotates to automatically adjust the pressing force on the topsoil of the covering soil leveling plate 3a (111), and adjusting the suppression no. This is done automatically and the seeding furrow is properly covered with soil.

Although the above embodiments have been explained by applying the present invention to a riding-type seeding device, the present invention can be similarly implemented in a pedestrian-type seeding device.

As explained above, the topsoil leveling 8 of the seeding device of the present invention
! , ti, j, the ground pressure sensitivity adjustment of the float that controls the vertical movement of the aircraft by sensing ground pressure fluctuations, and the leveling force 1ill for covering the seeding trench with soil. Since they are linked, the upper and lower levels of the float can be set appropriately according to the hardness and softness of If+II, and at the same time, the appropriate pressing force can be used to cover and level the soil according to the hardness and softness of the cultivated soil, improving work accuracy. A high seeding rate can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a side view of the entire riding-type seeding device without showing the first embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG.
FIG. 4 is a side view of the entire riding type 111 type marrow loading device showing an embodiment of the present invention. 1... 11 running bodies, 2... Front wheel, 3... Rear wheel, 4
・'...Engine, 5...vl! Downlink, 6...
Seeding device, 7... Main body frame, 8.15... Bell 1 to transmission system, 9, 11... Transmission turf, 10... Connection frame, 12... Seed feeding section, 13... Seed hopper, 14... Seed guide tube, 1G... Rotating shaft, 1
7... Support frame, 18... Center float,
19...Side float, 20...Bracket, 2
1.40...Support arm, 22...Oil switching valve, 23...Sensitive damping adjustment arm, 24.35...Operation rod, 24a, 35a...Long hole, 24b. 3511 ・・Spring, 25.25a 7 operation Y A7
．． 2 G・IS! Ml 11! Seat, 21... Sensitivity adjustment lever, 28... Long hole link, 29°34...
Pin, 30...Groove cutter, 31...Support part 4Δ,
32.38...Rotation shaft, 33.33a...Soil covering leveling plate, 36...Return spring, 37...1I hard and soft resistor, 39...Link [-1 Tsudo. Special Applicant J [Seki I Ryoki Co., Ltd. Representation Agent Benrei 1st Attorney Kobashi II; Oki Iri+ Patent Attorney Mura Tsuki Susumu, Commissioner of the Patent Office Manabu 〒 4 Sugi 1 Kuchi Huo-dono 1. Indication of the case Patent Application No. 140377 No. 140377 of 1982, Title of the invention Topsoil Leveling Mechanism for Sowing H Station 3, Person making the amendment Relationship to the case Patent Applicant: 700 Umaki-cho, Matsuyama City, Ehime Prefecture @4, Agent 6, all drawings to be amended 7, contents of amendment 11 (no change in content)

Claims (2)

[Claims] (1) A float that senses ground pressure fluctuations to control the vertical movement of the aircraft, a sensitivity adjustment mechanism that adjusts the ground contact impression of this float, a groove forming mechanism that forms the seeding groove, and a groove forming mechanism behind the groove forming mechanism. A top soil of a seeding device characterized in that it is provided with a leveling mechanism for leveling the seeding groove and covering the soil, and is configured to adjust the pressing force of the leveling mechanism as well as the adjustment of the sensitivity adjustment mechanism. Leveled 11 cups. (2) Claim 1 in which the sensitivity adjustment mechanism is an automatic mechanism that detects the hardness and softness of the topsoil and automatically adjusts the sensitivity.
Topsoil leveling mechanism of the seeding device described in Section 3.