JPH08298843A - Dust feeding valve structure for axial flow type combine harvester - Google Patents

Abstract

PURPOSE: To provide a dust feeding valve structure for an axial flow type combine harvester capable of suppressing sticking unhulled rice, etc., and hardly causing the clogging with threshing treated materials in spite of its ability to carry out sufficient threshing treatment. CONSTITUTION: This dust feeding valve structure for an axial flow type combine harvester is obtained by installing many plate units 10 for feeding dust side by side in the shaft center direction of a threshing drum in the threshing chamber pivoting a threshing drum 4 and interlocking and connecting the respective plate units 10 for feeding the dust so as to enable the free change in the crossing angle of the respective plate units 10 for feeding the dust from the shaft center direction of the threshing drum of the plate units 10 for feeding the dust. The angle of the plate units 10 for feeding the dust on the downstream side in the transfer direction of threshed materials in the shaft center direction of the threshing drum is set at one for more permitting the transfer of the treated materials than that of the plate units 10 for feeding dust on the upstream side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a large number of dust-delivering plate bodies arranged in parallel along the axial direction of the handling barrel in a handling chamber for axially supporting the handling barrel. The present invention relates to an axial-flow-type combine dust control valve structure in which the respective dust-feeding plate bodies are interlockingly connected to each other so that the angle intersecting the handling cylinder axis direction can be changed.

[0002]

2. Description of the Related Art Conventionally, in this type of axial-flow combine dust-sending valve structure, as shown in, for example, Japanese Patent Application Laid-Open No. 6-237634, each dust-sending plate has a handle barrel shaft. It is set to have the same inclination angle with respect to the core, and the inclination angle can be changed to increase or decrease the feeding action, and all dust-sending plates maintain the same inclination angle. I was configured to be.

[0003]

By the way, on the first half side of the handling room, that is, on the upper side in the transfer direction of the threshing treatment product, the amount of threshing treatment product supplied into the handling room is large. If there is a long residence time there, there is a possibility that clogging will occur because there is also a treated material that will be supplied later.Therefore, in order to perform sufficient grain removal treatment, it is desirable to slow the transfer rate of the treated matter, The feed angle of the dust feed plate of the dust feed valve was set so that the dust could be fed backwards as quickly as possible. However, in such a case, there is a problem that the threshing process is insufficient or there is a high possibility that the rice waste will be discharged to the outside of the machine while being stuck in the straw waste, and there is a problem that the recovery efficiency is low. The present invention has been made in view of the above circumstances, and suppresses stabbed paddy and the like, and, while capable of performing sufficient threshing treatment, feeding of an axial-flow combine combine in which clogging of the threshing treatment product is unlikely to occur The purpose is to provide a dust valve structure.

[0004]

In order to achieve the above-mentioned object, a dust valve structure for an axial flow combine according to the present invention is provided.
In the handling chamber that supports the handling cylinder, a large number of dust-delivering plates are arranged in parallel along the handling-drum axis direction, and the angle at which each dust-delivery plate intersects the handling-drum axis direction is changed. Freely, in the dust-flow valve structure of the axial-flow combine, in which the dust-feed plates are interlockingly connected, in the dust-feed plate on the lower side in the threshing material transfer direction along the handling cylinder axis direction. It is a characteristic feature that the angle is set to an angle that allows the transfer of the processed material with respect to the plate body for the dust sending valve on the right side. Operation by such a feature configuration
The effects are as follows.

[0005]

In other words, the angle of the lower dust sending plate in the transfer direction of the threshing processed product along the handling cylinder axis direction with respect to the handling drum axis is set to be greater than that of the upper dust sending valve plate. Since the angle is set to allow the threshing process, the threshing process should be performed slowly in the handling room in the handling direction so that the threshing process time can be increased and the threshing process time can be kept low. Since the lower hand in the handling room transfer direction in the handling room is designed to speed up the transfer rate of the processed object, the lower hand has a small amount of processed material, so that even the upper hand can handle the processed material. Even if the pressure increases and the pressure increases, it is possible that the processed material is more likely to be sent to the lower hand, and it is also possible to eliminate the clogging of the processed material between the handling cylinder and the receiving net.

[0006]

As described above, the threshing treatment effect of the handling chamber in the direction of transferring the treated material is sufficient because the residence time of the treated material can be lengthened. Even so, even if a relatively large amount of the processed material is supplied to the upper hand of the handling room, the lower side of the handling room moves to the lower side of the handling room because the transfer speed of the processed material is faster. It is easy for the processed products of (3) to escape and be transferred, and it is easy to avoid clogging.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a threshing device for an axial-flow combine harvester. In this threshing device, a handling room 1 for introducing a mowing culm as a threshing treatment product that has been conveyed and supplied from a pre-mowing treatment section on the left side of the figure is formed in the upper part of the case, and a sorting section is provided below the handling room 1. 2 is arranged, and a receiving net (concave) 3 is provided for leaking the processed material from the handling room 1 to the sorting section 2.

In the handling chamber 1, a single handling cylinder 4 is supported horizontally in the front-rear direction, and spiral handling teeth 5a are attached to the outer peripheral surface of the handling cylinder 4 over substantially the entire length in the front-back direction, and the spiral handling teeth 5a. An independent handle tooth 5b is attached to the handle at a proper pitch in the circumferential direction. It is provided in 7.

The sorting section 2 is provided with an oscillating sorting case 2a, a wind picking sardine 2b, a No. 1 recovery screw conveyor 8 and a No. 2 recovery screw conveyor 9, and a process of leakage and supply from the receiving net 3 is performed. The product is oscillated and rearranged by the swinging and sorting case 2a while being sieve-sorted and wind-sorted, and the grain is fed from the No. 1 product recovery screw conveyor 8 to the grain tank (not shown). The second item is returned from the second item recovery screw conveyor 9 to the front part of the swing selection case 2a via a returning device (not shown).

As shown in FIGS. 1 to 5, the dust transfer valve 6 is used.
Are pivotally supported on the top plate 7 by a support shaft 11 so as to be swingable around a vertical axis center around a substantially central portion of the guide action surface in the longitudinal direction. ing. Then, one end of each dust-sending plate 10 is pivotally supported on the interlocking rod 12 along the front-rear axis X direction so as to be swingable around the vertical axis. A swing arm 13 is pivotally attached to the spindle 11 of the front end of the dust-delivery plate bodies 10 by means of an outer case of the threshing case. The swing arm 13 is engaged with and interlocked with a pin 16a of a top member 16 screwed to a screw shaft 15 that is normally and reversely rotated by a drive device 14 that uses an electric motor, and all the dust-sending plate bodies. 10 ... are linked by an interlocking rod 12 so as to be integrally swingable.

More specifically, as shown in FIGS. 3 to 5, when the feed speed is the slowest, of the dust-delivering plate members 10, the upper hand in the workpiece transfer direction, that is, the front-rear direction. In the case of Wako, the intersecting angle of the treatment product transfer guide surface with respect to the handling cylinder axis X is set to an angle close to a right angle. It is set to an inclined angle. That is, the connecting point to the support shaft 11 which is the swing center of each dust-sending plate body 10 ...
Although it is set at a substantially central portion of the guide action range of the processed material transfer guide surface of all the dust-delivering plate bodies 10 ... Plate 10
The length L1 of the pivoting arm portion 10b projecting from the end of the interlocking rod 12 in Fig. 4 is set to protrude from the end of the interlocking rod 12 of the dust-discharging plate 10 of the lower hand in the workpiece transfer direction. Since the length L2 of the pivot support arm portion 10c is set shorter, the link length connecting the pivot support point and the support shaft 11 location with respect to the interlocking rod 12 is equal in each dust sending plate body 10 ... Nevertheless, the dust transfer plate 10 with the lower hand is always maintained in the angular posture in which the handling cylinder axis X is inclined more than the lower dust transfer plate 10 with respect to the processing object transfer direction. Will be set. That is, even if the drive device 14 is appropriately operated to set the angle of the processed-material transfer guide surface of the dust-transfer plate 10 with respect to the processed-material transfer direction, the processed-material transfer direction is always lower than the dust-transferred plate. In the case of No. 10, the handling cylinder axis X, which has a higher function of transferring a processed material, is maintained and set in an angled posture in which the handling cylinder axis X has a higher function than that of the dust-removing plate 10 having a good hand. As shown in FIGS. 3 to 5, the interlocking rod 1 in the dust-feeding plate body 10 on the lower side.
2 so that the pivotal position with respect to 2 can be changed in three positions in the front-rear direction, the pivotal arm portion 10c of each dust-delivering plate 10 on the lower side
Has three holes for its pivotal support. Accordingly, it is possible to set a plurality of types of angle settings for each dust-side plate 10 on the lower side with respect to each plate 10 for the dust-side on the upper side.
In the above structure, it is possible to make the angle of the whole dust-feeding plate 10 with respect to the processed material transfer direction constant depending on the type of the threshing target crop and the like.

It should be noted that reference numerals are given in the claims 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]

FIG. 1 is a vertical sectional side view showing a combine threshing device.

FIG. 2 is a vertical sectional front view mainly showing a handling room of the threshing device.

FIG. 3 is a plan view showing a dust delivery valve structure in the handling chamber.

FIG. 4 is a plan view showing two types of dust-discharging plate bodies.

FIG. 5 is a perspective view showing two types of dust sending plate bodies.

[Explanation of symbols]

 1 Handling Room 4 Handling Cylinder 10 Dust Transfer Plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shoichi Nakatani 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory

Claims (1)

[Claims] 1. A handling chamber (1) axially supporting a handling cylinder (4),
A plurality of dust-sending plates (10) are arranged in parallel along the handling cylinder axis direction, and the angle of each dust-sending plate body (10) intersecting the handling cylinder axis direction is changeable. An axial-flow combine dust-collecting valve structure in which each dust-discharging plate (10) is interlockedly connected, wherein the dust-discharging plate on the lower side in the threshing-processed product transfer direction along the handling barrel axis direction. An axial-flow-type combine dust control valve structure in which the angle of (10) is set to an angle that allows the transfer of a processed material with respect to the dust control valve plate (10) on the upper side.