JPS5850811Y2 - Mounting structure of ground sled for adjusting plowing depth - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure for mounting a plowing depth adjusting earthing blade located at the rear of a rotary tilling device so that it can swing up and down using its front end as a fulcrum.

In conventional installations of this type, the front end of the ground cover was pivoted to the side cover of the rotary tiller, allowing the ground cover to swing up and down; however, in this case, the side cover rotated. Since it does not have sufficient strength to support the weight of the rotary tiller, it is necessary to reinforce this side cover, which tends to complicate the structure and increase the weight of the rotary tiller.

In view of these points, the present invention aims to provide a structure for installing a grounding rod for adjusting tillage depth that can ensure sufficient installation strength with a simple structure, and also to provide a structure for installing the earthing rod for adjusting tillage depth. The point is that the installation of the ground bridge for adjusting the plowing depth does not provide a structure where the plowing depth can be adjusted by selecting it and using it as a demarcation tool to mark the boundary between plowed and uncultivated land during plowing work. have a purpose.

The structure of the installation of the grounding plate for adjusting the plowing depth of the present invention is characterized by a horizontal shaft provided at the rear of the pair of left and right support frames of the side drive type tillage device, and a relatively narrow grounding plate for adjusting the plowing depth. The lateral front end is connected to the horizontal shaft to be pivotably connected, and the rear end of the grounding bridge is connected from the support frame side, and the rear end of the grounding bridge is cultivated. It is supported by a plowing depth adjustment mechanism that can be lifted above the lower end of the rotation trajectory of the claw, and this configuration provides the following effects.

In other words, by using the support frame, which is originally constructed with sufficient strength to support the rotary tilling equipment, for horizontal mounting, special special Although the structure is simple and does not require any reinforcing members, it has become possible to mount it firmly and with sufficient strength to support the weight of the rotary tiller.

Since the comparatively narrow grounding blades for adjusting the plowing depth are installed immediately behind the pair of left and right support frames of the side drive type cultivating device, the tilling claws face inward with respect to the axis.
When plowing the field flat by arranging them alternately facing outward,
Or, if you break the ridges with all the claws facing outward with the left and right center of the machine as the border, the muddy soil will be discharged to the uncultivated land side during the tilling operation, making it impossible to distinguish between uncultivated and cultivated land. The inconvenience is that as the machine advances, lines are drawn at intervals for the mud discharged to the uncultivated land side by the plowing depth adjustment grounding machine, and since this is done during the reciprocating process, the above lines are used as a guide. The tillage work was able to be carried out satisfactorily.

Hereinafter, embodiments of the present invention will be described based on illustrative drawings.
This machine A can be freely swung up and down at positions separated from the left and right.
A comparatively narrow rotary tiller 1 is installed at the rear of a side drive type rotary tiller 1, in which both ends of the tilling shaft 1a are pivotally supported between the swinging free ends of a pair of left and right support frames 3, 3 attached to the rotary tiller 1. It has a structure in which a pair of wide left and right plowing depth adjustment grounding blades 2, 2 are attached with their front ends pivoted on a horizontal axis R9R so as to be swingable up and down, and the free end portions of the support frames 3, 3, respectively. The pivot members 4, 4 are integrally connected to each other, and the horizontal axes R, R are provided to the integrally connected members 4, 4, respectively. The rear end is pivotably mounted on R so that it can swing up and down.

Reference numeral 5 denotes a tillage depth adjustment mechanism that can simultaneously lift the pair of left and right ground contact bridges 2, 2 and lift the ground contact bridges 2, 2 above the lower end of the rotation locus of the tiller claws 1b by operating one bundle 5a. This plowing depth adjustment mechanism is constructed as follows.

That is, a single horizontal shaft 5b is provided at the upper part of the pair of left and right support frames 3, 3, extending between the support frames 3.3, and links 5c, 5c are fixed to both left and right sides of this horizontal shaft 5b. , the free ends of the links 5c, 5c and the ground bridge 2,
The rear ends of the two are connected by rods 5 d and 5 d, respectively.

A link 5e is fixed to the center of the horizontal shaft 5b, and the free end of the link 5e is connected to the bracket 3B provided at the center of the cylindrical frame 3A connecting the left and right support frames 3, 3. , link 5 pivoted in the center
It is connected to the free end of f through a screw shaft 5a'.

The other end of the link 5f is connected to the bracket a of the machine A via a link 5g, and the center portion of the link 5f and the other end are connected via a link 5h. There is.

With this configuration, when the bundle 5a is rotated, the link 5b is displaced relative to the link 5f, so that the ground contact sides 2, 2 are simultaneously adjusted up and down.

6 is an upper cover of the rotary tiller 1; 7, 7 are right and left side covers of the rotary tiller 1; and 8 is an elevating arm that swings and drives the rotary tiller 1.

Moreover, the inner surfaces 2a, >a of the grounding tangles 2, 2 facing each other are as follows:
Tilling claws 1b and l located on the left and right outermost sides of the rotary tilling device 1
b, and is positioned inward from the opposing inner surfaces of the left and right side covers 7.7.

Further, one of the support frames 3, 3 is configured as a transmission case in which a transmission chain to the tilling shaft 1a is housed.

[Brief explanation of the drawing]

The drawings show an embodiment of the structure of the mounting structure of the earthing lever for adjusting the plowing depth according to the present invention, and FIG. 1 is a side view of the main part, and FIG. 2 is a partially cutaway rear view. 1...Rotary tillage device, 2...Grounding pole for adjusting tillage depth, 3...Support frame, 4...
... Integrally connected member, 5... Cultivation depth adjustment mechanism.

Claims (1)

[Scope of utility model registration request] A pair of left and right support frames 3 of a side drive type tilling device
. The rear end portions of the ground contact sides 2, 2 are connected to the support frames 3, 3 side,
The mounting structure of the earthing lever for adjusting the tillage depth is such that the rear end of the earthing bridge 2 is supported by the tilling depth adjustment mechanism 5 which can lift the rear end part of the earthing bridge 2 above the lower end of the rotation locus of the tilling claw 1b.