JPH0339003Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> This invention relates to a combing waste discharge structure of an auxiliary lifting case provided substantially perpendicularly to a main lifting device of a reaping section of a combine harvester or the like.

<Conventional technology> Conventionally, in the reaping section of combine harvesters, etc., for example,
As shown in Publication No. 59-13780, in addition to the main lifting device that guides the grain culm in front of the reaping section to stand up in the direction of the cutting blade as the machine moves, there is also a main lifting device installed in a direction perpendicular to this, mainly for the reaping section. Some machines are equipped with an auxiliary lifting device in front of the grain culm that has fallen down in the left and right direction to make it stand upright and distribute it to the left and right. It has a structure that protrudes outside the case, and as the chain rotates, the tip of the claw raises the grain culm.

Then, in order to discharge combing debris, etc., the case is opened only near the turning part of the claws at the upper and lower ends of the non-working side (downward rear side of the obliquely installed case) where the claws do not protrude. The non-active side of the case is closed off by attaching a cover with a U-shaped cross section to the other parts, and the inside of the U-shape is used to remove debris such as straw scraps and soil that have been combed up by the lifting claws. The structure was such that it would be transmitted to the Ochibe Eko area.

<Problems to be solved by the invention> However, with the above structure, not only is the removal of combed waste insufficient, but also the water-containing mud is carried around when the grain culm is raised by the claws, and this There was a problem in that mud and straw debris adhered together inside the case, and when the amount of adhesion became large, the auxiliary lifting device became inoperable. On the other hand, if the non-active side of the case is left completely open, the side of the main drawer case will get dirty and cause peeling of paint and rust, and if other equipment is installed below it, There is a problem that mud, debris, etc. may fall onto the surface and have an adverse effect.

<Means for solving the problems> The device of the present invention for solving the above problems is as follows:
A main lifting device that hooks the grain culm from the horizontal direction on the reaping part and pulls it upward; and a main lifting device that hooks the grain culm from the vertical direction and pulls it upward at the side end of the main lifting case of the main lifting device. In a mechanism provided with an auxiliary lifting device for raising the auxiliary lifting device, the lifting claw inside the auxiliary lifting case protrudes from the rear side of the auxiliary lifting case which is in an inactive state when it is collapsed, and the lifting claw protrudes from the back side of the auxiliary lifting case and removes straw debris, etc. The inside of the auxiliary lifting case is designed to prevent straw waste, etc. from being discharged from the auxiliary lifting case from being discharged along the side or front of the main lifting case. The present invention is characterized in that a guide cover is provided which covers the inside and the lower part of the body of the opening part and which is in contact with the lifting claw protruding from inside the auxiliary lifting case to restrict the lying and standing states.

<Function> The mud and straw debris lifted to the upper part of the auxiliary lifting case by the lifting claw reaches the chain inside the auxiliary lifting case and the upper turning part of the lifting claw, and is discharged from the opening part to the outside of the case. However, at this time, the mud and straw debris is assisted by the guide cover and separated from the case, then guided to the outside of the machine and discharged onto the ground on the unmoved side, where it falls on top of other equipment, etc. etc. will not fall.

In addition, the protruding part of the lifting claw is in contact with the guide cover at the open part of the auxiliary lifting case, but at the top of the case it is in a lying position along the internal endless chain, and as it goes downward, it is gradually raised to an upright position. It is guided so that it stands up completely when it is removed from the guide cover.

<Example> Below, an example in which the device of the present invention is applied to a combine harvester for two-row cutting will be described in detail with reference to the drawings.
The figure shows an overall view of a combine harvester, in which the machine body 1 has a preprocessing section 5 in front of a frame 3, a threshing section 9 on the frame 3 supported on a running section 7, and a grain culm to the threshing section 9. A feed chain 11 etc. to be introduced is provided. An illumination light 13 for use in manual handling work is attached to the end of the upper cover of the inlet of the threshing section 9.

The preprocessing section 5 has left and right dividers 17 and a middle divider 19 attached to the front lower part of the preprocessing frame 15, and two main pulling devices 21 and 23 are installed diagonally in front of one of these dividers. An auxiliary lifting device 25 is obliquely installed at the outer end of one of the main lifting devices 23 so that the main lifting device 23 and the cross section of the case are perpendicular to each other.

At the bottom of the pre-processing section 5, clipper-like cutting blades 27 are attached in the left-right direction, and at the top thereof, a scraping device 29 is installed that bites the harvested grain culm and sends it backward.
However, a conveyance device 31 for conveying the grain culm to the feed chain 11 is further provided at the rear upper part thereof. The auxiliary lifting device is fixed at its lower end near the tip of the preprocessing frame 15 behind one of the dividers 17 via a bracket 33, and is attached at its upper end via a drive unit case for power transmission.

The combine is provided separately into a narrow guide 37 and an upper narrow guide 39, and the lower narrow guide 37 is fixedly and diagonally provided so as to protrude outward and rearwardly upward from the rear of the divider 17 with respect to the machine body 1. ing. Also, the above narrow guide 39
The front end is rotatably inserted forward and supported at a relatively high position such as the upper end of the bracket 33, and the base end is rotatably supported on the body 1 side on the way to the rear end. It is connected and supported by a support rod 41 that can be expanded and contracted freely. The upper narrow guide 39 can be set at any angle on the side of the body by extending and contracting the support rod 41 and determining its rotational position, as shown by solid lines and imaginary lines in FIG.

As a result, the upper narrow guide 39 can be used as a manual handling guide for guiding grain culms to the threshing section when only manual handling is performed without reaping at the highest rotational position, and at lower rotational positions. In this position, it can be used as a narrow guide to push aside unharvested rice, etc. that may obstruct reaping. At this time, the lower narrow guide 37 hits near the root of the grain culm in the uncut field and pushes it away to the side of the machine (see Figure 2), and at a higher position, the upper narrow guide pushes it away. It has a structure that disperses the force acting on the grain culm in the uncut field and prevents problems such as getting caught in the narrow guide and damage, without applying excessive force to the grain culm in the uncut field.

1 to 3 show the structure and operation of the hoisting device. The proximal end portions of the lifting pawls 47 are rotatably supported at regular intervals on an endless chain 45 that is wound around the case 43. The upright guides 49 and 51 inside constitute an active side that runs upright, and the outside upper part of the case 43 has no upright guide 49 and constitutes a non-active side where the pawl 47 runs along the chain 45 in a laid down position. ing.

On the outside of the main lifting case 43, an auxiliary cover 43a is formed to cover the outer surface and guide the lifting claw 47 so that the upper part thereof maintains the lying position and the lower part thereof maintains the upright position. This auxiliary cover 43a is the main lifting case 43
The lower end of the case has a structure in which the raising claw 47 protrudes toward the outside of the body so that it can be erected into an operating state.

The auxiliary lifting case 5 is arranged in a direction perpendicular to the main lifting case 43 at an outer position.
A chain wheel 55 is also pivotally supported at the upper and lower ends of the auxiliary lifting case 53, and an endless chain 57 is wound around both chain wheels 55. Similarly to the above, the chain 57 has a lifting claw 59. The base end is supported by a shaft so that it can be rotated up and down. On the outer periphery of the auxiliary lifting case 53, a lifting claw 59 is connected to a lifting guide 6.
1, both the working side which takes the upright position and the non-working side which takes the lying position form an open part 63 from which the claw 59 can protrude. When driven, centrifugal force causes it to stand up downward and try to protrude out of the case.
The lifting claw 59 is attached to the following guide covers 65, 6.
7 regulates its standing and lying postures.

That is, on the non-operating side (lower side) of the auxiliary lifting case 53, guide covers 65 and 67, which are both bent (or curved) in a "dog" shape, are provided fixed to both sides, or the auxiliary lifting case 53 is 53 as extended ends of the lower portions on both sides. The lower ends of both covers 65 and 67 both face toward the outside of the body and form an outlet 69 for discharging debris and the like.

Also, among the above-mentioned covers, an inner guide cover 6 provided on the side surface of the body of the auxiliary lifting case 53
5 makes contact with the lower end of the non-acting side lifting pawl 59, which attempts to rise downward due to its own weight and centrifugal force during driving, to the inner surface of the lower end piece 65a bent outward, guides its posture, and serves as an auxiliary lifting pawl. The claw 59 at the lower end of the case regulates the posture in which it stands up in an operating state.

Furthermore, due to the positional relationship between the lifting cases 43 and 53, the inner guide cover 65 is bent outward from the outer position of the main lifting case 43 above the auxiliary lifting case 53; As shown in FIG. B, it has a structure in which it touches the upper surface of the side end of the auxiliary cover 43a. As a result, mud, debris, etc. that are carried around to the non-active side inside the case 53 by the lifting claw 59 are discharged from the opening 63 and guided to the lower end piece 65a of the rear inner guide cover 65, and are guided to the discharge port 69. This prevents the waste from falling onto the fuel tank 71 and other equipment, which are often installed below the auxiliary lifting case 53.

<Effects of the invention> According to the invention constructed as described above, mud, straw debris, etc. brought into the auxiliary lifting case by the lifting claws are removed from the chain and the lifting case on the non-operating side of the case. It is ejected into the opening as the claw is driven, and is further guided by the guide cover and dropped through the discharge port onto the uncut area outside the machine. As a result, not only is it possible to prevent mud and straw debris from adhering to the inside of the auxiliary hoisting case and interfering with the operation and function of the auxiliary hoisting device, but also these discharged substances can be removed from the covers and attached equipment on the fuselage side. Problems such as adhesion to or entanglement are eliminated. Furthermore, when an outer cover is attached in addition to the inner cover, the lifting claws are not exposed from the auxiliary lifting case, thereby preventing entanglement of nearby grain culms and danger to workers.

[Brief explanation of the drawing]

1A and 1B are sectional views taken along lines 3A and 3B showing the main parts of the device of the present invention, FIG. 2 is a front view of the lifting device, FIG. The figure is an overall perspective view of a combine harvester equipped with the device of the present invention. 1: fuselage, 23: main lifting device, 25: auxiliary lifting device, 43: main lifting case, 43a: auxiliary cover, 45: endless chain, 47: lifting claw, 4
9: Standing guide, 53: Auxiliary raising case, 5
7: Endless chain, 59: Raising claw, 61: Standing guide, 63: Opening part, 65, 67: Guide cover, 65a: Lower end piece, 69: Discharge port.

Claims (1)

[Scope of utility model registration request] A main lifting device that hooks the grain culm from the horizontal direction on the reaping part and pulls it upward; and a main lifting device that hooks the grain culm from the vertical direction and pulls it upward at the side end of the main lifting case of the main lifting device. In a mechanism provided with an auxiliary lifting device for raising the auxiliary lifting device, the lifting claw inside the auxiliary lifting case protrudes from the rear side of the auxiliary lifting case which is in an inactive state when it is collapsed, and the lifting claw protrudes from the back side of the auxiliary lifting case and removes straw debris, etc. The inside of the auxiliary lifting case is designed to prevent straw waste, etc. from being discharged from the auxiliary lifting case from being discharged along the side or front of the main lifting case. combed waste of the auxiliary lifting case in the reaping section, which is provided with a guide cover that covers the inside and the lower part of the machine body of the open part and restricts the falling and standing states in contact with the lifting claw protruding from the inside of the auxiliary lifting case; Exhaust structure.