JPS5834962Y2 - Rotary shield cover - Google Patents

Description

[Detailed description of the invention] This invention relates to a vertical movement device for a rotary shield cover, and more specifically, it moves the shield cover up and down according to the rotation radius of the tilling blade to maintain a predetermined clearance between the tilling blade tip and the shield cover. This invention relates to a vertical movement device for adjusting the thickness.

Rotary tillers and soil crushers are equipped with a shield cover so as not to impede the rotational movement of the tiller blade group, but the clearance between the blade edge and the shield cover has a major impact on tillage and work on the frame. , it is necessary to select it appropriately.

By the way, in order to adjust the clearance between the cutting edge of the tiller blade and the shield cover, a long hole in the vertical direction is provided in the front and rear side walls of the transmission case of the center drive type tiller. There is a car that has a shield cover with a long hole in the front and back direction attached so that it can move vertically and tilt freely, but the shield cover is just a cover and does not double as a reinforcing member. In addition, the strength of attaching the shield cover to the above-mentioned ten case is weak and unreliable, and in addition, in order to expand the work width in the case of raking work, it is necessary to install an additional shield cover on the outside of the above-mentioned shield cover. It has the disadvantage that it is difficult to add to and extend it.

By the way, this idea uses a shield cover that covers the group of tilling blades and also serves as a reinforcing member that integrally connects both side plates that support main components such as the transmission shaft and tilling shaft, in line with the circular trajectory drawn by the tilling blades. The blades are moved vertically in parallel while maintaining approximately the same distance, and the clearance between the tiller blade tip and the shield cover is selected, and it can be firmly fixed to the side frame.

The details of this invention will be explained below with reference to the attached drawings.

First, the sight plate designated by reference numeral 1 is provided with a hole 11 through which the transmission shaft passes and a hole 12 through which the tilling shaft passes, and further, flanges 21 formed at both ends of a shield cover 2, which will be described later, are abutted. Therefore, the blade plate 13 widened in the width direction,
14 is formed.

The flange 2 of the shield cover 2 is attached to the wing plates 13 and 14.
A plurality of bolt holes 15 corresponding to the bolt holes 22 drilled in 1
．． 16 are arranged at intervals in the vertical direction.

A shield cover 2 is coupled to this side plate 1, and the shield cover 2 has a curved surface so as not to prevent the rotation of the tiller blade, and is provided with upright flanges 21 at both ends. 21 is located inside the sight plate 1, and a bolt hole 22 formed in the flange 21 is aligned with a bolt hole 15 of the side plate 1, and the two are connected by bolts.

As a result, a strong body is constructed with the side plates and shield cover.

Therefore, when the rotation radius of the tiller blade is small, if the bolt holes 22 of the flange 21 of the shield cover 2 are moved from the bolt holes 15 of the side plate 1 to the bolt holes 16 on the lower side and these are bolted together, the shield The cover 2 can be moved downward while maintaining substantially the same distance from the imaginary circle drawn by the tip of the tiller blade.

On the other hand, when the rotation radius of the tiller blade is large, by selecting the upper bolt hole 15 of the bolt holes in the side plate 1, it is possible to maintain an appropriate distance between the shield cover 2 and the tip of the tiller blade. can.

In addition, in the above description, the side plate is provided with a plurality of bolt holes in the vertical direction, but the shield cover 2 may be provided with a plurality of bolt holes in the vertical direction.

As is clear from the above description, according to the device for vertically moving the shield cover of this invention, when drilling bolt holes in the flanges of the side plate and the shield cover, the bolt holes are oriented vertically in either of them. Therefore, the vertical movement of the shield cover can be easily adjusted by selecting the bolt holes, and the shield cover can be integrally and extremely firmly fixed to the side plate to serve as a strength member of the rotary.

Alternatively, a shield cover is also disposed on the outside of both side plates, and this is firmly and integrally connected to the site plate with a common bolt together with the shield cover disposed between the plates. The working width can be expanded very easily in scraping work and the like.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the vertical movement device for a rotary shield cover according to the present invention, and FIG. 1 is a side view of a side plate, and FIG. 2 is a perspective view of one end of the shield cover. 1... Side plate, 11... Transmission shaft hole, 12... Tilling shaft hole, 13.14...
...Blade plate, 15゜16 ...Bolt hole, 2.
...Shield cover, 21...Flange, 22...Bolt hole.

Claims (1)

[Scope of utility model registration request] In a rotary rotary equipped with a shield cover that serves as a strength member and has both ends bolted to both side plates that support the transmission shaft and tillage shaft, a plurality of bolt holes are provided for moving the shield cover in the vertical direction and attaching it. A device for vertically moving a shield cover, characterized in that the shield cover is perforated in the flange of the side plate or the shield cover so that the shield cover can be moved up and down depending on the cultivation environment and connected to both side plates with bolts.