JPH03160901A - Soil adhesion-preventing device of rotary device - Google Patents

Abstract

PURPOSE:To improve the appearance of the device and prevent the adhesion of soil to the device by disposing an elastic rib on an elastic cover corresponding to an auxiliary cover covering the rear end portion of a rotary tilling member and further disposing an engaging member on the engaging section of the elastic rib. CONSTITUTION:When soil spattered with a rotary tilling member 6 is moved along an elastic conver 13 disposed on an upper cover 10 and a rear cover 11 and along an elastic cover 53 disposed an auxiliary cover 26, the adhesion of the soil can be prevented owing to the vibration of the covers caused by the spattered soil because a space is formed between the upper cover 10, the auxiliary cover 26, etc., and the elastic covers 13 and 53. Since engaging plates 61 and 62 disposed on auxiliary cover 26 within surrounded with an elastic rib 51 are engaged with the engaging section 60 of the elastic rib 51 to attach the cover 53, engaging plates 61 and 62., etc., are received between the auxiliary cover 26 and the elastic cover 53, thereby giving a good appearance and preventing the adhesion of the soil.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a mud adhesion prevention device for a rotary device.

(Prior art) As a mud adhesion prevention device for a rotary device, an elastic cover for preventing mud adhesion is provided with a predetermined gap on the upper cover that covers the rotary tilling section and the lower surface of the rear canal, and the rear cover is Some have a notch formed in the center of the rear end for placing a soil cultivator or the like when using the pot, and an elastic cover for preventing mud from adhering to the lower surface of the auxiliary cover that closes this notch.

(Problem to be Solved by the Invention) Conventionally, when an elastic cover is attached to an upper cover and a rear cover, in order to improve the vibration of the elastic cover, the elastic cover is attached with a gap between the elastic cover and the upper cover, etc. Various technologies are available.

However, since the auxiliary cover side was attached by fastening the elastic cover with multiple bolts, there was no gap between the auxiliary cover and the elastic cover, and the upper surface side of the auxiliary cover or the lower surface of the elastic cover Pol 1-, nuts, etc. are exposed,
It had the disadvantage of not only looking bad but also attracting mud.

The present invention was provided for the purpose of solving such conventional problems.

(Means for Solving the Problems) The present invention provides a cover 10.11 for covering the rotary tiller 6.
In a mud adhesion prevention device for a rotary device, an elastic cover 13.53 for preventing mud adhesion is attached to the lower surface side of an auxiliary cover 26 that closes a notch 25 formed at the rear end of the cover 10.11. Elastic cover 5 corresponding to 26
An elastic rib 51 for attachment is formed in an endless shape on the upper surface of the auxiliary cover 26, and the engaging portion 60 of the elastic rib 51 is engaged from inside within the range surrounded by the elastic rib 51 on the lower surface of the auxiliary cover 26. A mating engagement plate 6L62 is provided.

(Function) The mud thrown off by the rotary tiller 6 is removed by the elastic cover 13 attached to the upper cover 10 and the rear cover 11.
It flows along the elastic cover 53 attached to the auxiliary cover 26. At this time, since there is a gap between the upper cover 10, the auxiliary cover 26, etc. and the elastic cover 13.53, the cover vibrates due to the vibration of the mud, thereby preventing the mud from adhering to the cover.

The elastic cover 53 connects the engagement plates 61 and 62 provided on the auxiliary cover 26 within the range surrounded by the elastic ribs 51 to the elastic ribs 51.
1, the engaging plate 6L62 and the like fit between the auxiliary cover 26 and the elastic cover 53, giving it a good appearance and free from mud.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings. In Fig. 4, 1 is a rotary machine frame, input gear case 2, support arm 3, side frame 4, chain case 5, etc. It is structured by Reference numeral 6 denotes a rotary tilling section, in which a claw shaft 7 is installed horizontally at the bottom of the rotary machine frame 1.
, is composed of a large number of tilling claws 8 provided on this claw shaft 7. Reference numeral 9 denotes a rotary cover that covers the rotary tilling section 6, and is composed of an upper cover 10, a rear cover 11, and a pair of left and right side covers 12. 13 is an elastic cover for preventing dirt from getting wet, which includes an upper cover 10 and a rear cover 11;
It is attached to the bottom side of the. 14 is a gauge wheel support rod that projects rearward from the rotary machine frame 1.

Reference numeral 15 denotes a pair of left and right bullet lowering mechanisms that urge the rear cover 11 downward, and includes a mounting arm 16 fixed to the upper cover 10 and a rear end of the mounting arm 16 that is inserted in the vertical direction and whose lower end is attached to the rear cover 11. The lower bullet rod 19 is fixed to the bracket 17 with a pin 1B, and the lower bullet coil spring 20 is fitted onto the lower bullet rod 19.

The upper cover 10 has an upper cover plate 2 as shown in FIG.
1 and a lower cover plate 22 are joined at both the front and rear ends, and side plates 23 in the front and rear direction are provided at both left and right edges, and it has a hollow shape.
The lower cover plate 22 is curved into an arc so as to cover the rotary tiller 6 from above. In addition, the upper cover 1
0 is fixed to the rotary machine frame 1 side.

The rear cover 11 is connected to the upper cover 1 as shown in FIG.
It is pivoted to the rear end of 0 by a horizontal pivot 24 so as to be freely movable L downward, and as shown in FIGS.
A letter-shaped notch 25 is formed.

This notch 25 is for arranging a soil cultivator or the like attached to the gauge wheel support rod l4, and is normally covered by a triangular auxiliary cover 26. Also rear cover 11
A leveling cover 27 is detachably attached to the rear end.

The elastic cover 13 is attached to the upper cover 1 as shown in FIG.
0 and rear cover 11, and the lower surface side is formed into a smooth surface.

Further, on the upper surface side of the elastic cover 13, a front elastic rib 28 and a rear elastic rib 29 for mounting are formed along the direction of rotation of the claw of the rotary tiller 6, and a front elastic rib 28 and a rear elastic rib 29 are formed.
0, a front side elastic rib 31 and a rear center elastic rib 32 are formed, respectively. The front elastic ribs 28 extend from near the front end of the upper cover 10 to the upper end of the rear cover 1l, and are formed in a plurality, for example six, at predetermined intervals in the lateral direction. As shown in FIGS. 5 and 7, each front elastic rib 28 has trapezoidal protrusions 33 that protrude upward at predetermined intervals in the front-rear direction, and each of the protrusions 33 An opening-like engaging portion 34 is provided on one side in the lateral direction and is correspondingly formed. On the other hand, the upper end portions of the upper cover 10 and the rear cover 11 are provided with tongues at positions corresponding to the engaging portions 34 of each front elastic rib 28, as shown in FIGS. 5, 8, and 9. A piece-shaped engagement plate 35 is fixed,
Each engagement plate 35 is inserted into and engaged with each engagement portion 34 from the lateral direction. The front end elastic rib 30 is formed on the front end edge of the elastic cover I3 over the entire length in the lateral direction, and as shown in FIGS.
An engaging portion 36 is formed into which the front edge of the lower cover plate 2L22 is inserted from the rear side. The front end elastic rib 30 is supported and fixed between the upper and lower cover plates 2L22 by a holding plate 38 via a rubber sag 37 for preventing muddy water from scattering during puddling. The presser plate 38 is fixed to the upper cover plate 21 with bolts 39, and the presser plate 38 is provided with a V-shaped protrusion 40 over the entire length in the lateral direction to prevent the front end elastic rib 30 from coming off. It is formed.

The front elastic ribs 31 are formed in the front-rear direction on both left and right edges of the elastic cover 13 in correspondence with the left and right edges of the upper cover 10 . As shown in FIG. 8, in one front elastic rib 3l, a band-shaped engagement plate 41 fixed to the lower cover plate 22 in the front-rear direction is inserted into the engagement portion 42 from one side in the lateral direction. and is engaged.

The other front elastic rib 31 is positioned in contact with the side plate 23, as shown in FIG.

As shown in FIG. 6, the rear central elastic rib 32 is formed in a mountain shape when viewed from the rear along the front edge side of the notch 25 of the rear cover 11, and the engaging portion 43 of the rear central elastic rib 32 has a As shown in FIGS. 1 to 3, a fixed engagement plate 44 is inserted and engaged with the lower surface of the rear cover 11. As shown in FIGS.

A plurality of rear elastic ribs 29, for example three, are provided on both left and right sides of the rear central elastic rib 32, at both left and right end edges of the elastic cover 13, and in the middle therebetween. Engagement part 4 opening on one side in the lateral direction
5 is formed over the entire length. As shown in FIG. 10, the engaging portion 45 of each rear elastic rib 29 has a
An engagement plate 46 having substantially the same length as this is inserted and engaged from one side in the lateral direction. Each retaining plate 46 is fixed to the lower surface of the rear cover l1 in the vicinity of each rear elastic rib 29 in the front-rear direction.

In this way, the elastic cover 13 is attached to the upper cover 1 via the elastic ribs 28 to 32, the engagement plates 35, 41, 44, 46, etc.
0 and rear cover 11 with a predetermined gap therebetween. Then, the upper end portion of the rear cover 11 is engaged Fi. 35 and the engaging portion 34 of the front elastic rib 28 have substantially the same longitudinal width, and this attachment portion 47 is fixed to the rear cover l1. On the other hand, the other engaging portions 34 of the front elastic rib 28 are formed to be larger in width than the longitudinal width of the engaging plate 35 as they move forward, and these mounting portions 48 are designed to accommodate vertical movement of the rear cover 11 around the pivot shaft 24. A play L is provided to allow this. Note that an L-shaped receiving plate 49 is provided on the lower surface side of the upper end of the rear cover 1l so as to eliminate the level difference with the rear end of the lower cover plate 22, and each engagement plate is attached to this receiving plate 49. 35 is installed.

As shown in FIGS. 1 to 3, the auxiliary cover 26 is attached to the rear cover 11 via the mounting brackets 5o on the center and left and right sides.
It is removably attached to the This auxiliary cover 26 also has elastic ribs 51 for mounting and front and rear retaining plywood plates 61.
A protective cover 53 for preventing dirt from getting wet is attached via a cover 62. The mounting bracket 50 is attached to the bracket 1 of the auxiliary cover 26.
54 via a pin 55, and a U-shaped elastic engagement rod 58 whose both ends are connected to the lever 56 and which has a pair of left and right winding portions 57.
is removably engaged with the engagement part 59 of the rear cover l]. The elastic rib 51 is formed in the upper half of the elastic cover 53 to have an endless triangular shape when viewed from the back.
An engaging portion 60 is formed on the inner peripheral side. The front engagement plate 61 is surrounded by the elastic ribs 51, corresponding to the left and right oblique sides of the elastic rib 51, and the rear engagement plate 62 is surrounded by the elastic ribs 51, corresponding to the corners between the oblique side and the bottom side of the elastic rib 51. These engagement plates 61 and 62 are fixed to the auxiliary cover 26 within the range.
is engaged with the engaging portion 60 of the elastic rib 51 from inside. Therefore, the elastic cover 53 is immovable and is attached to the auxiliary cover 26 with a gap equal to the height of the elastic rib 51 between the elastic cover 53 and the auxiliary cover 26 .

A bracket 17 fixed to the rear cover 11 is U-shaped as shown in FIG. A pusher 65 with a collar 64 is fitted into the hole 63 of the lowering rod 19 from both the left and right sides.

The bushoche 65 is made of citrus resin or the like having appropriate elasticity, and thereby prevents the bottle 1B from rattling in the radial direction and axial direction in the lower bullet rond 19.

Elastic cover 13.53 and elastic ribs 28-32, 5]
is formed as follows. IIJ Chi, 1st
As shown in Figure 2, the elastic cover 13.53 has a hardness of 70
A relatively hard rubber sheet 66 and a canvas 67 are bonded together with an adhesive, and the elastic ribs 28 to 32.51 are vulcanized and bonded onto the canvas 67. Elastic rib 28
~32.51 is made from a synthetic rubber material that is softer than the synthetic rubber sheet 66. Note that vulcanization adhesion is performed by placing the product in a mold.

In the above structure, when the tilling claws 8 of the rotary tilling unit 6 rotate and start cultivating the field, the mud thrown off by the tilling claws 8 is scattered to the upper cover 10 and rear cover 11 side, and the dirt is attached to the lower surface side thereof. While colliding with the elastic cover 13 that has been moved, it is guided rearward along the elastic cover 13.53. At this time, the elastic cover 13.53 constantly vibrates due to the impact of mud collision, so the elastic cover 13.53
No mud will stick to the bottom side of the unit. In addition, elastic ribs 28 and 29 for attaching the elastic cover 13 to the two-part cover 10 and rear cover 11 are formed along the rotational direction of the tilling claws 8, that is, the direction in which the mud flows. Therefore, mud pools do not form on the elastic lips 28 and 29 as in the conventional case, and mud can be prevented from adhering to the elastic lips 28 and 29, and mud can flow smoothly, preventing damage to the elastic cover 13. It can be prevented.

Since the elastic cover 13 is attached from the upper cover 10 to the rear cover 11, the elastic cover 13 is not interrupted even at the connecting portion of both covers 1011, and the flow of mud along the elastic cover 13 is further improved. Therefore, it is possible to prevent mud from adhering to and clogging the connecting portion, especially near the pivot shaft 24. During tilling, the rear cover 11 moves up and down around the axis 24 according to the amount of tilled soil, and when adjusting the lowering mechanism 15, etc., it is rotated upwards around the axis 24. Upper cover 1
Since there is play L in the front and back direction at the attachment part 48 halfway to the 0, at this time, the elastic cover 1 is
3 expands and contracts uniformly and does not prevent the movement of the rear cover 11.

Since the elastic cover 53 is attached to the auxiliary cover 26 by engaging the engagement plates 61 and 62 with the engagement portions 60 of the elastic ribs 51, there is no need to use bolts or the like as in the conventional case. This improves the appearance of the upper surface of the elastic cover 53 and prevents mud from adhering to the lower surface of the elastic cover 53.

Moreover, the elastic rib 51 is endless, and the engagement plates 61 and 62 are located within the range surrounded by the elastic rib 51, and the engagement plates 61 and 62 engage with the engagement portion 60 of the elastic rib 51 from inside. This prevents mud from entering the interior.

(Effects of the Invention) According to the present invention, the mounting elastic ribs 51 are formed in an endless shape on the upper surface of the elastic cover 53 corresponding to the auxiliary cover 26, and the area surrounded by the elastic ribs 51 on the lower surface of the auxiliary cover 26 Since engagement plates 61 and 62 that engage from the inside with the engagement portion 1z 60 of the elastic rib 51 are provided, the elastic cover 53 can be attached with a gap between it and the auxiliary cover 26. At the same time, the appearance of the upper surface of the auxiliary cover 26 is improved, and the adhesion of mud to the lower surface of the elastic cover 53 can be prevented.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a rear view of a part of the auxiliary cover, FIG. 2 is a side sectional view of the same, and FIG.
-m arrow view, Fig. 4 is a side view of the whole, Fig. 5 is a side sectional view of a part of the upper cover, Fig. 6 is a plan view of the elastic cover, Fig. 7
The figures are an enlarged view of Fig. 6 in the direction of arrows 1 and 2, Figs. 8 and 9 are rear sectional views of a portion of the upper cover, Fig. 10 is an enlarged view of Fig. 6 in the direction of the X-X arrows, and Fig. 11 is a sectional view of the lower bullet support part, No.
FIG. 2 is a sectional view of the elastic cover. 1... Rokuri machine frame, 6... Rokuri tilling section, 10
...Top cover, 11...Rear cover, 13.53
... Elastic cover for preventing mud adhesion, 25 ... Notch, 2
6... Auxiliary cover, 51... Elastic rib for attachment, 60
...Engagement portion, 61.62...Engagement plate.

Claims (1)

[Claims] (1) Cover (10) that covers the rotary tiller (6) (
11), and an elastic cover (13) (53) for preventing mud adhesion is attached to the lower surface side of the auxiliary cover (26) that closes the notch (25) formed at the rear end of the cover (10) (11). In the mud adhesion prevention device for a rotary device, an elastic rib (51) for attachment is formed in an endless shape on the upper surface of an elastic cover (53) corresponding to the auxiliary cover (26).
) and within the range surrounded by the elastic rib (51), engagement plates (61) and (62) are provided which engage from inside with the engagement portion (60) of the elastic rib (51). A mud adhesion prevention device for rotary equipment.