JPS5939Y2 - Grain culm conveyance mechanism in combine harvesters and self-propelled threshing machines - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grain rod conveyance mechanism in a combine harvester or a self-propelled threshing machine.

Generally, when a task-type or cylinder-type cutter is attached to a self-shedding combine harvester or a self-propelled threshing machine, straw clogging occurs due to the following factors.

That is, (a) when a large amount of ejected rods exceeding the cutting capacity are to be supplied to the cutter mechanism;

(b) When a metal object such as a piece of wood or a tool other than a grain rod is being fed to the cutter mechanism.

In such a case, if the supply of waste rods and the cutter drive are continued continuously, damage to the blade shaft, drive transmission mechanism, etc., and damage to the grain transportation device on the combine harvester side may occur.

The present invention has been devised to eliminate these drawbacks, and aims to prevent the above-mentioned problems with a simple structure, protect the cutter mechanism, and improve workability.

To explain the details of the embodiment with reference to the drawings, A is the main body of the combine, B is the reaping section, C is the self-extraction machine, D is the conveyor belt t-,
E is a cutter mechanism.

As is clear from FIGS. 2 and 3, a guide plate 1 is disposed under the conveyor belt (D) with an appropriate gap between the lower side of the guide plate 1 and the fuselage. A spring 2 is interposed between the guide plates 1 and 2, so that when excess straw is sent from the chewing machine C, the guide plate 1 moves down against the elasticity of the spring 2.

Reference numeral 3 designates an operating lever member, the middle part of which is pivotally supported on the machine frame, and the upper side of the operating lever member 3, more specifically, one end on the self-extraction machine side. A downward hook portion 4 is formed on the other end of the operating lever member 3, which faces the lower side of the end of the guide plate 1, and the hook portion 4 has a hook portion 4 that is rotated horizontally by approximately 90 degrees. A thin rod-shaped blocking member 5 is removably engaged.

This blocking member 5 is disposed perpendicular to the conveying direction of the ejection rod, and a spring 6 for horizontally rotating the blocking member 5 by about 90° is elastically installed at the base of the blocking member 5. It is.

An operating rod 7 provided at the lower end of the guide plate 1 faces the upper end surface of the operating lever member 3.

Further, as is clear from FIG. 2, the blocking member 5 faces the upper opening of the cutter case 8 like a bridge, so that the discharge rod can be guided to the outside of the cutter case 8 and discharged. It is something.

In the figure, 9 is a high-speed rotating circular blade, and 10 is a low-speed rotating circular blade.

Next, the action will be explained as described in (a) above.

When an excessive load is applied to the guide plate 1 due to reasons such as (b), the guide plate 1 moves down against the spring 2.

Due to this downward action, the working lever 7 provided below the end of the guide plate 1 pushes one end of the working lever member 3 from above, so the other end of the working lever member 3 rotates upward. , the blocking member 5 which was locked by the hook portion 4 of this is released, and the blocking member 5 is horizontally rotated to the imaginary line position in FIGS. The continuously conveyed ejection rod is not supplied to a part of the cutter of the cutter mechanism, but is guided out of the cutter case 8 while being held between the blocking member 5 and the conveying bell ()-D.

After all of the causes (a) and (b) have been resolved, the blocking member 5 is manually returned to its old state and retained by the hook portion 4 of the operating lever member 3.

As described above, according to the present invention, the guide plate descends due to the causes seen in (a) and (b) above, and this descending action causes the operating lever member to rotate and be latched thereto. At the same time, the blocking member that has been previously held is released, and it is horizontally rotated by the action of the spring, so that it can be rotated and disposed along the underside of the conveyor belt.

This action allows the continuously conveyed ejector rods to be sandwiched between the blocking member and the conveyor belt and guided to the outside of the cutter case, thereby preventing damage to the cutter mechanism or the conveyor mechanism on the combine harvester side. can be prevented.

In addition, in the present invention, since the blocking member 5 that blocks the discharge rod supply port of the cutter case in a bridge-like manner is rotatably provided with respect to the cutter case, this type of blocking mechanism does not remain on the main body side, and therefore this cutter mechanism It has great practical effects, such as being extremely easy to replace with a binding machine or other rod removal processing equipment, and causing no problems.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the combine, FIG. 2 is a partially cutaway side view of the main parts, and FIG. 3 is a perspective view of the main parts. A: Combine harvester main body, B: Reaping section, C: Delivers, D: Conveyor belt, E
... Cutter mechanism, 1 ... Guide plate, 2
... Spring, 3 ... Action lever member, 4
...Hook portion, 5...Blocking member, 6...
... spring, 7... action rod, 8...
Cutter case, 9... High speed rotating circular blade, 10
・・・・・・Low speed rotating circular blade.

Claims (1)

[Scope of utility model registration request] The waste rods discharged from an automatic threshing machine such as a combine harvester or a self-propelled threshing machine are transferred by a conveyance mechanism, and the waste rods are shredded from the discharge rod supply port into the cutter case, and are placed along the above-mentioned conveyance mechanism. In a device in which the amount of ejected rod conveyed is detected by the amount of vertical movement of the guide plate, and the ejected rod supply to a part of the cutter is interrupted when the ejected rod pressure is detected during excessive conveyance, the guide plate The front end of the operating lever member 3, which rotates due to the excessive downward movement of the lever, is placed at the lower part of the rear end of the lever 1,
A blocking member is provided at the rear end of the operating lever member 3, which has a horizontal rotation behavior due to the action of a spring or the like, runs along the lower side of the conveying mechanism in the axial direction, and blocks the ejecting rod supply port in a bridge manner. 5
At the same time, this blocking member 5 is
A grain rod conveyance mechanism in a combine harvester or a self-propelled threshing machine, which is rotatably installed in the cutter case.