JP3161060B2 - Combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine in which a feed chain of a threshing unit is swingably opened and closed.

[0002]

2. Description of the Related Art Conventionally, there has been known a combine of this type in which a hood of a threshing unit is swingably opened and closed around a longitudinal axis provided on the end side.

[0003]

The purpose of swinging open and close the hood chain of the threshing section is to open the sides of the threshing section to maintain and inspect the handling room and the handling cylinder, clean the receiving net, and so on.
The purpose is to facilitate maintenance such as replacement. The present invention eliminates interference with the reaping portion when the feed chain is opened by setting the swing opening and closing fulcrum of the feed chain at a position corresponding to the shaft center portion of the starting end side sprocket of the chain or at a position slightly forward thereof. The object is to realize the swing opening angle (amount) to be larger. Therefore, the following technical measures were taken.

[0004]

That is, a technical means according to the present invention is to mount a threshing machine 5 having a feed chain 4 on one side of a handling room 3 on a machine base, and to provide a threshing machine in front of the threshing machine. Is provided with a cutting device 6 including a raising device for raising the weeded stalks, a reaping device for cutting the cultivated stalks, and a transport device for transporting the stalks to the rear. In the combine, the feed chain 4 is configured to be swingable open and closed with the start end side as a fulcrum, so that the feed chain 4 is located at a position corresponding to the shaft center of the sprocket 12 on the start end side of the feed chain 4 or at a position slightly forward thereof. It is characterized in that it is configured to swing open and close around the provided vertical axis 18 core.

[0005]

The feed chain of the threshing unit swings open and close around a vertical axis provided near the axis of the starting end sprocket.

[0006]

Therefore, according to the present invention, the maintenance in the handling room is facilitated by the swinging opening and closing of the feed chain.
In particular, the opening end of the feed chain at the time of opening does not interfere with the mowing part, so that the swing opening range can be made larger and the maintenance in the handling room can be further facilitated.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS On a body 2 having a traveling crawler 1, a handling room 3 is provided.
A threshing machine (threshing unit 5) provided with a feed chain 4 is mounted on one side, and a harvesting unit 6 is provided in front of the threshing unit so as to be able to move up and down around a horizontal axis to constitute a combine. In the configuration of the threshing unit 5, a handling cylinder 7 is erected in the handling room 3, and a receiving net 8 is provided on a lower wall of the handling room 3. The handle cover 9 is configured to be swingably openable and closable around the support shaft 10. A clamping rail 11 provided on the upper side of the feed chain 4 is attached to the handle cover 9 so that it can swing open and close together with the handle cover.

At the position near the axial center of the sprocket 12 at the starting end of the feed chain 4, a support frame 13 is erected upward from the body 2 side, and is bent rearward from an intermediate portion. The rear end 13a is connected and held to a threshing machine frame (front side plate) 14. The support frame 13 is firmly connected to and held by the cutting support frame 15 of the cutting section 6 via a lateral reinforcing frame 16.

The feed chain 4 is attached to the chain support frame 17 so as to be rotatable about a vertical axis 18 provided on the support frame 13 so as to be rotatable. The fulcrum is used as a fulcrum to swing open and close to the inside and outside of the handling room. The drive unit for the feed chain 4 is constituted by a transmission case 19, a drive shaft 20, a drive gear 21, a drive sprocket 22, and the like.
The drive gear 21 faces the projection 19 </ b> A of the gear 19 to prevent the drive gear 20 from being wound around the drive shaft 20. By configuring the winding prevention body 23 to cover the entire circumference of the case projection 19A, winding of the straw around the case 19 and the drive shaft 20 can be prevented. Drive gear 21 and drive sprocket 22
Are configured to be engaged and disengageable so that they can be fitted and disengaged and transmit power.

A guide roller 25 is provided near the fulcrum side of the chain rail frame 24 on the side of the feed chain 4 that swings and opens and closes, and near a threshing machine frame (front side plate) 14 on the threshing unit body side. A guide groove 26 into which the guide roller 25 can be fitted.
Is provided. Therefore, the guide mechanism having such a configuration serves as a guide for when the chain is opened to closed, and the drive sprocket 22 can be connected smoothly.

In the drawing, hair pins 27 are attached to both sides of a net frame 8A of the receiving net 8, and the receiving net 8 is fixed by being inserted into a support stay 28 on the threshing body side. I have. According to this configuration, when the receiving net is set to be detached, the receiving net is securely fixed, and the chain can be opened and closed smoothly.
Can do it. The reaping unit 6 includes a weeding device 6a for weeding the raised culm and a raising device 6b for raising the weeded culm.
And a harvesting device 6c for harvesting the raised grain culm, a transport device 6d for transporting the harvested grain culm to the feed chain 4 of the threshing unit 5, and the like.

[Brief description of the drawings]

FIG. 1 is a side view of a combine.

FIG. 2 is a plan view of the combine.

FIG. 3 is a side view of a main part of the combine.

FIG. 4 is a plan view of a main part of the combine.

FIG. 5 is a perspective view of the combine.

FIG. 6 is a sectional view of a main part of a feed chain driving unit.

FIG. 7 is a perspective view of a main part of the threshing unit.

FIG. 8 is a perspective view of a main part of the threshing unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running cradle 2 Airframe 3 Handling room 4 Feed chain 5 Threshing part 6 Cutting part 7 Handling cylinder 8 Receiving net 9 Handling cylinder cover 10 Support shaft 11 Holding rail 12 Start sprocket 13 Supporting frame 14 Threshing Machine frame 15 Cutting support frame 16 Reinforcement frame 17 Chain support frame 18 Vertical axis

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01F 12/10

Claims (1)

(57) [Claims] 1. A threshing machine 5 equipped with a feed chain 4 on one side of a handling room 3 is mounted on a machine stand, and a raising device for raising a weeded culm in front of the threshing machine is provided. In a combine provided with a cutting unit 6 including a cutting device for cutting the harvested grain culm and a transport device for transporting the harvested grain stalk backward, the feed chain 4 is supported at the start end side. In order to be able to swing open and close, it is possible to swing open and close around a vertical longitudinal axis 18 provided at a position corresponding to the shaft center of the starting end side sprocket 12 of the feed chain 4 or at a position slightly forward of it. A combine characterized in that: