JPH0627057Y2 - Combine dustproof structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is provided with a pre-mowing pretreatment section that can swing up and down at the front of the machine body, and a driving section on one side of the treatment section and a thresher at the rear. Concerning the dustproof structure of the combine deployed respectively [Prior art] As the above dustproof structure, conventionally, the dustproof cover covering the upper part of the pre-cutting section forms a gap between the rear end and the front of the threshing device. At the same time, this dust cover was attached to the fuselage at several points by bolting.

[Problems to be solved by the device]

The above conventional structure, when swinging the mowing pretreatment unit,
The cover is in contact with the front surface of the threshing device so as not to hinder the ascending operation.However, since there is an operating unit on the right rear side of the pre-mowing treatment unit, there is no waste such as straw scraps from the gap. It had the drawback that dust would fall on the driver.
Further, when manually threshing the headland mowing culm or when throwing floating straws or the like remaining in the pre-cutting processing section into the threshing device, the dust cover must be removed, and the bolts must be removed. Removal work was troublesome.

INDUSTRIAL APPLICABILITY The present invention is intended to reduce the amount of dust falling on the driver as much as possible, and to easily open and close the vicinity of the grain culm inlet of the threshing device at the rear of the dust-proof cover in a stable posture. Is intended.

[Means for Solving the Problems]

A characteristic structure of the present invention is that a dust-proof cover covering the entire upper surface of the mowing pretreatment unit, a fixed cover covering the front side of the mowing pretreatment unit and attached to the mowing pretreatment unit, and a rear end. Is detachably attached to the front portion of the threshing device, and a permeable movable cover that is rotatably attached.
A guide mechanism is provided for guiding the fixed cover and the movable cover so as to be slidable relative to each other in the front-rear direction, and the guide mechanism is arranged in the cutting pretreatment unit along the front-rear direction in the left and right sides of the movable cover in a fixed position. It is provided with a plurality of rollers which are engaged with the roller engaging portion on the movable cover side, and the operation and effect are as follows.

[Action]

During the mowing threshing work, the dust inside the mowing pretreatment part is blocked by the dust-proof cover covering the entire upper surface of the mowing pretreatment part, and when the mowing pretreatment part is raised without falling on the operating part, With the upward swing of the mowing pretreatment section, the fixed cover is displaced rearward and upward together with the mowing pretreatment section, but the movable cover is slid relative to the fixed cover, and the movable cover is rearwardly displaced. By rotating around the horizontal axis at the end, the raising operation is allowed.

Then, by making the movable cover transparent, it is possible to easily visually check the state of conveyance of the cut culms at the rear of the pre-cutting section.

Also, when manually inserting the headland mowing culm, the rear end of the movable cover is disengaged from the front part of the threshing device and removed.
By slidingly displacing it forward through the guide mechanism, the work can be performed by opening the upper part of the grain culm inlet. At this time, the guide mechanism is arranged in a fixed position in the mowing pretreatment section along the front-rear direction on both left and right sides of the movable cover, and a plurality of rollers are engaged by the roller engagement section on the movable cover side. Since it is configured, the slide movement can be performed smoothly, and the slide guide and the support of the movable cover in the open posture can be supported in a plurality of front and rear positions without swinging vertically and can be performed in a stable posture.

[Effect of device]

Therefore, at the time of mowing work, it is possible to reduce the amount of dust falling on the operating unit as much as possible without hindering the vertical swinging operation of the mowing pretreatment unit.
The dust-proof cover can be easily opened and closed when manually throwing threshing or throwing floating straws, and the cover can be opened and closed and the posture in the open state can be stable, improving work safety. It became a thing. or,
This also has the effect of easily visualizing the occurrence of floating straw in the pre-mowing processing section.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 4 and FIG. 5, a threshing device is mounted on a machine body frame (2) equipped with a pair of left and right crawler traveling devices (1), (1).
(3) and a grain tank (4) for storing grains are mounted in parallel in the machine lateral direction, and the planted culm is cut in the front part of the machine frame (2), and the cutting is carried to the threshing device (3). A pretreatment unit (A) is installed in a row, and the operating unit is located on the right side of this pretreatment unit.
(B) is deployed to form a combine.

The pre-cutting processing section (A) is provided with a plurality of weeding tools (5) at the front end for guiding the planted culms, and the lodging culms are placed in a standing posture at the rear of the weeding tools (5). A plurality of pulling devices (6) for pulling up are arranged side by side in the left-right direction, and a clipper-type cutting device (7) for cutting the stand side of the standing grain culverts on the rear side thereof, and a standing cutting While gradually changing the posture of the grain culm to the sideways posture,
Each of the vertical conveyors (9) for conveying to the starting end of the feed chain (8) of the threshing device (3) is provided.

The mowing pretreatment section (A) is supported by a hydraulic cylinder (10) so as to be vertically swingable around a horizontal axis at the base end (P ₁ ), and the upper part of the mowing pretreatment section (A) is A dustproof cover (11) covering the entire upper surface of the pre-cutting processing section (A) is provided, and the dust generated in the pre-cutting processing section (A) and the dust blown from the grain culm supply port of the threshing device (3) are operated as described above. It is configured so that the driver sitting in the section (B) does not get off.

As shown in FIGS. 1 and 2, the dustproof cover (11)
Consists of a fixed cover (11b) at the front and a movable cover (11a) at the rear, and the fixed cover (11b) is the pre-cutting processing section (A).
It is arranged so as to cover the front side thereof and is attached and fixed to the upper surface of the upper coupling drive part (12) of the raising devices (6) ... As shown in FIG. On the other hand, the movable cover (11a) is arranged such that the front end part thereof partially overlaps with the rear part of the fixed cover (11b) when the pre-processing section (A) is in the normal cutting position with the swinging downward. , Thresher at the rear end
It is attached to the entire surface (3a) of (3) so as to be engageable with and disengageable from it, and is made of a permeable resin material.

That is, a gripping member (14) fixed to the threshing device (3) and elastically gripping a fixing member (13) made of a circular pipe extending in the lateral direction from above is provided with a movable cover (14). 11a) It is provided at the rear end, and the gripping member (14) is artificially inserted into and removed from the fixing member (13) against the elastic urging force to make it engageable and disengageable, and its engaged state. In the above, it is configured so as to be rotatable around the axis (P ₂ ) of the fixing member (13).

A guide mechanism (15) that guides the covers (11a) and (11b) so as to be relatively slidable forward and backward is provided at an overlapping portion of the fixed cover (11b) and the movable cover (11a).

More specifically, as shown in FIG. 1, a mounting piece (19), a mounting piece (19), is attached to a substantially U-shaped support frame (18) installed over the left and right pretreatment section frame parts (17), (17). A support shaft (20) extending in the lateral direction via (19) is fixed. And this support shaft (2
The rollers (21) and (21) which are freely rotatable are pivotally supported at both ends of (0), and the other rollers (23) and (23) are pivotally supported at the front.
A guide mechanism (15) is constituted by (21) and (23), and is extended forward and backward along the left and right side portions of the movable cover (11a), and both upper and lower sides with respect to the rollers (21) and (23). The guide mechanism (15) is configured to slide along the roller engaging portions (24) and (24) that are engaged with each other, whereby the movable cover (11a) and the fixed cover (11b) are relatively slid and displaced. It is configured to be possible.

[Another embodiment]

The movable cover (11a) and the threshing device (3) front part can be freely engaged and disengaged,
In addition, the fixing member (1
3) may be composed of a ferromagnetic material, and the gripping member (14) may be composed of an inverted U-shaped permanent magnet so as to be attracted by a magnetic force, or the fixing member (13). May be composed of a permanent magnet.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

1 is a side view of a front portion of a combine, FIG. 2 is a perspective view of a dust cover, and FIG. 3 is a sectional view of a fixed portion of the dust cover.
FIG. 4 is an overall perspective view of the combine, and FIG. 5 is a plan view of a front part of the combine. (3) …… Threshing device, (11) …… Dustproof cover, (11a) …… Movable cover, (11b) …… Fixed cover, (15) …… Guide mechanism, (21), (23) …… Roller , (24) ...... Roller engaging part, (A) ...... Pre-cutting processing part, (B) …… Operating part.

Claims (1)

[Scope of utility model registration request] 1. A mowing pretreatment unit which is vertically swingable at the front of the machine body.
(A), the operation unit (B) on one side of the processing unit (A), a combine dustproof structure in which a threshing device (3) is respectively disposed behind, the pre-mowing processing unit ( Dust cover (11) covering the entire upper surface of (A)
The front part of the pre-cutting section (A) is covered, and a fixed cover (11b) attached to the pre-cutting section (A), and the rear end is the front part of the threshing device (3). It is composed of a transparent movable cover (11a) which is detachably and pivotally mounted, and guides the fixed cover (11b) and the movable cover (11a) so as to be relatively slidable forward and backward. A guide mechanism (15) is provided, and the guide mechanism (15) is disposed in the cutting pretreatment unit (A) along the front-rear direction on both left and right sides of the movable cover (11a) in a fixed position. A combine dustproof structure composed of a plurality of rollers (21) and (23) with which a roller engaging portion (24) on the (11a) side is engaged.