JPH0244Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a grain culm conveying device in a DC combine harvester, which smoothly and reliably transports the harvested grain culms to a handling chamber regardless of the amount thereof, and enhances the threshing action in the handling chamber. The aim is to

By the way, in a DC type combine harvester, the grain culms are harvested by the reaping section at the front of the machine, and after being collected in the center or one side of the machine by a cross-feeding auger,
Grain culms are conveyed into the handling room by a feeder conveyor for vertical conveyance, with the ears in front. Conventionally, the conveyor has a structure in which the grain culms are held and conveyed between the bottom surface of the conveyor and the floor plate of the conveyance section. Therefore, if the amount of conveyance is large, the grain culms will become clogged between the conveyor and the floorboard, and if the amount of conveyance is small, the conveying action of the conveyor will not be sufficiently transmitted to the grain culms, resulting in a lack of smoothness and reliability of conveyance. It was hot.
In addition, in a DC combine harvester, since the entire grain culm is supplied to the handling chamber by the conveyor, the grain culm is easily dragged by the rotation of the handling drum in the chamber, and the grain culm is easily dragged by the handling teeth on the circumferential surface of the handling drum. The threshing action by rubbing the grain culms together was not effective, and there was a tendency for unhandled grain to be left behind.

The present invention addresses the above-mentioned problems with conventional DC type combine harvesters.The present invention is designed to solve the above-mentioned problems with conventional DC type combine harvesters. hand,
A guide plate is provided in which a front swinging member whose front end is pivotally supported and a rear swinging member whose rear end is pivotally supported are overlapped so that the rear end of the former can slide over the front end of the latter. At the same time, by biasing the rear swinging member upwardly by a spring, the harvested grain culm is always placed between the conveyor and the guide plate without allowing straw waste to enter below both swinging members, regardless of the amount. The grain culms are conveyed smoothly and reliably to the handling room by being clamped with optimum force, and when the grain culms are introduced into the handling room, the grain end side is clamped between the conveyor and the guide plate. By introducing the grain from the tip side, the threshing action of the handling barrel on the tip of the grain culm can be effectively performed.

Hereinafter, the present invention will be explained based on the embodiment shown in the drawings. In Fig. 1, 1 is the body of a DC combine harvester, 2 is a traveling device below the body, and 3 is a reaping section installed in front of the body. , the reaping section includes a divider 4 that determines the cutting width, a grain culm lifting reel 5,
A cutting blade 6, an auxiliary conveyor 7, etc. are provided, and a transverse feed auger 8 gathers the harvested grain culms to the center or one side of the machine body, and the grain culms are transferred to the handling room 9 in the machine body 1. Its front entrance 9
Feeder conveyor 1 for vertical conveyance carried in from a
0 is equipped. Here, the auger 8 winds the harvested grain culm downward from the ear side and feeds it laterally, and then feeds the grain culm from the ear side between the feeder conveyor 10 and the floor plate 11 arranged below it. It is configured as follows. Reference numeral 12 denotes a handling barrel mounted on the shaft in the handling chamber 9; 13, a cone cave disposed along the lower surface of the handling barrel; 14, a beater provided at the straw outlet 9b at the rear of the handling chamber; and 15, a Straw discharge part 16 at the rear of the machine from below the handling room outlet 9b
17 is a sorting section at the bottom of the fuselage, which includes a swinging sorting plate 18, a handle 19, a chaff sheave 20,
A grain sieve 21 and screw conveyors 22, 23 for carrying out the sorted first and second grains are provided, and a control section 24 and a grain tank 25 are further provided in the upper part of the fuselage. However, below the terminal end side of the feeder conveyor 10, a guide plate 26 is disposed along the lower surface 10a of the conveyor, which is continuous with the rear end of the floor plate 11 and reaches the handling room entrance 9a. However, as shown in FIG. 2, the guide plate includes a plate-shaped front swinging member 28 whose front end is pivoted to the side plate 27 of the conveying section, and a plate-shaped rear swinging member whose rear end is pivoted. The rear end portion 28a of the front swing member 28 is slidably overlapped with the front end portion 29a of the rear swing member 29 in a close contact state, and the rear swing member 29 is made of a member 29. 29
is urged upward by a spring 30 from below, that is, in a direction approaching the lower surface 10a of the feeder conveyor. Here, the spring 30 has an upper end connected to the rear swinging member 29 and a lower end connected to the bracket 31.
It is attached and held around a rod 32 that is supported vertically movably on the side plate 27, and a spring 3 is attached to the side plate 27.
A stopper pin 33 is fixedly provided to prevent the swinging members 28 and 29 from being pushed up more than necessary by the movement of the stopper pin 33 and interfering with the lower surface 10a of the conveyor.

According to the above configuration, the grain culm harvested in the reaping section 3 passes through the auxiliary conveyor 7 and the cross-feeding auger 8, and then the ears are placed between the feeder conveyor 10 and the floor plate 11 disposed along the lower surface 10a thereof. The conveyor 10 runs on the floor plate and a guide plate 26 following the rear end, and is conveyed toward the entrance 9a of the handling chamber 9. The front swinging member 28 and the rear swinging member 29, which are respectively supported, are connected to the rear end 28a.
The guide plates 26 and 26 are slidably overlapped in a close contact state, and are urged upward by a spring 30, so that when the amount of grain culms passing over the guide plate 26 is small, As shown by solid lines in FIG. 2, both swinging members 28 and 29 are pushed upward, and the gap with the conveyor lower surface 10a becomes narrower. Also, if there is a large amount of grain culms, the pressure Both members 28 and 29 are attached to the spring 3 as shown by the chain lines.
The lower surface 10 of the conveyor is pushed down against the
In this way, the grain culm is always held between the guide plate 26 and the conveyor 10 with an appropriate force, regardless of the amount of grain culm conveyed. In this case, since the rear end portion 28a and front end portion 29a of both swinging members 28 and 29 are closely overlapped, both members can be moved smoothly and reliably. Even if the conveyor moves, the lower part of the conveyor will not open. Furthermore, when the grain stems transported as described above are introduced into the handling chamber 9 from the entrance 9a, only the ear side enters the chamber and the stock end side is still between the conveyor 10 and the guide plate 26. However, in this state, the grain culm is not dragged by the rotation of the handling cylinder 12 in the handling chamber 9, so the handling cylinder is held against the tip of the grain culm. This works effectively and allows the threshing process to be carried out without leaving any unhandled grains.

As described above, the present invention provides a direct current type combine harvester in which harvested grain culms are carried into a handling room with the ears leading by a feeder conveyor, and a front swinging member and a rear swinging member are provided below the end of the conveyor. A guide plate is provided in which the grains are tightly overlapped at the rear end of the former and the front end of the latter, and this is biased upward by a spring, so that the grain culm can be transported regardless of the amount of grain transported. First, the grain culms are always transported smoothly and reliably, and the grain culms are introduced into the handling chamber from the ear side with the stock side being held between them, thereby preventing the rotation of the handling barrel in the chamber. The threshing action is effectively carried out, thereby preventing threshing defects such as unhandled grains and preventing the rocking plate from entering the lower part.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view of a combine harvester showing an embodiment of the present invention, and FIG. 2 is an enlarged longitudinal sectional side view of the main parts of the embodiment. 3... Reaping section, 9... Handling room, 10... Feeder conveyor, 10a... Lower surface, 26... Guide plate,
28... Front swinging member, 29... Rear swinging member,
30...Spring.

Claims (1)

[Scope of utility model registration request] Below the terminal end of the vertical feeder conveyor from the reaping section to the entrance of the handling room, along the lower surface of the conveyor, there are a front swinging member whose front end is pivotally supported, and a rear swinging member whose rear end is pivotally supported. A guide plate is provided in which the swinging member is slidably overlapped with the front end of the latter with the rear end of the former in close contact with each other, and the rear swinging member is urged upward by a spring. Characteristics of the grain culm conveying device of the DC type combine harvester.