JP2585200Y2 - Axial threshing machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a sensor in which a workpiece which flows in a circumferential direction of a handling cylinder is fixed to a top plate of a handling chamber, and a feed blade for guiding the workpiece in a direction of an axis of the handling cylinder is swung by the workpiece. And a pivot portion for swingably supporting the sensor is disposed on the upper side of the guide surface of the feed blade in the process guide direction with respect to the feed blade, and a free end of the sensor. The present invention relates to an axial-flow threshing device in which is disposed on the lower side in the workpiece guide direction from the end of the guide surface.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, an automatic control device for a threshing unit, a sorting unit, or the like is deactivated, or a sensor 13 for detecting the flow rate of a processed material in a handling room is used. The feed blade 11a is brought close only to the upper side of S,
The pivoting portion 13a of the sensor 13 is arranged on the upper side of the workpiece guide direction G from the guide surface end 11c of the feed blade 11a to prevent the workpiece from being caught on the pivoting portion 13a and to prevent the flow from being disturbed. The free end of the projection 13 protrudes from the guide surface end 11c to the lower side in the workpiece guide direction G, so that the workpiece can reliably act on the sensor 13.

[0003]

However, the processed material reversely flows toward the back side of the feed blade from near the lower side of the sensor in the flow direction of the processed material, and the processed material is caught on the sensor pivot due to the large reverse flow. There is a danger of flow and turbulence, and there is room for improvement in terms of preventing sensor troubles and improving threshing performance. SUMMARY OF THE INVENTION An object of the present invention is to make it possible to reliably eliminate a large reverse flow in the vicinity of a sensor and to reliably prevent a workpiece from being caught on a sensor pivot and a flow disturbance.

[0004]

A feature of the present invention is that a feed blade for guiding a processing object flowing in a circumferential direction of a handling cylinder in a direction of an axis of a handling cylinder is fixed to a top plate of a handling chamber, and the processing object is used. The oscillating sensor is disposed close to the feed blade on the downstream side in the processing object flow direction, and a pivot portion for swingably supporting the sensor is disposed on the upper side of the guide surface of the feed blade in the processing object guide direction, In an axial-flow threshing device in which the free end of the sensor is disposed on the lower side of the guide surface from the end of the guide surface, the second feed vane for guiding the work from the feed blade is connected to the sensor in the flow direction of the work with respect to the sensor. It is fixed to the top plate in a state close to the lower side, and the guide surfaces of both feed blades are arranged on substantially the same virtual plane.

[0005]

In other words, by bringing the second feed blade closer to the downstream side of the process flow direction of the processing blade with respect to the sensor arranged closer to the process flow direction side of the feed blade, the guide action of both feed blades causes the vicinity of the sensor. In this way, the reverse flow of the processed material to the back side of the feed blade can be sufficiently and reliably suppressed, and the processed material is sufficiently prevented from being caught on the sensor pivot and the flow disturbance, thereby preventing the sensor from malfunctioning in a highly reliable state. it can. Further, since the guide surfaces of the two feed blades are arranged on substantially the same virtual plane, the processed material can be smoothly guided over a sufficiently long distance by the two feed blades, and the flow disturbance of the processed material can be more reliably suppressed. Threshing performance can be sufficiently improved by smooth transfer of the processed material in the processing chamber.

[0006]

As a result, malfunction of the sensor in the processing chamber due to the processing object can be prevented in a highly reliable state, and smooth transfer of the processing object in the processing chamber can be reliably realized.
An axial-flow threshing apparatus which is much better in terms of sensor trouble prevention and threshing performance can be provided.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, in order to constitute an axial-flow threshing apparatus of an all-culm-in type combine, a handling chamber 2 communicating with a feed conveyor 1 for supplying cereal culm from a cutting section is formed at an upper part in a case. A sorting unit 3 is disposed below the handling room 2, and a receiving net 4 is provided to supply the kernels from the handling room 2 to the sorting unit 3. The handling cylinder 5 is mounted in the handling chamber 2 with a front-rear drive rotation shaft, and the spiral tooth 6 is attached to the outer peripheral surface of the handling cylinder 5 over the entire length and concentrically. In order to guide the workpiece flowing in the circumferential direction in the axis direction of the handling cylinder, the feed blades 11 are arranged and fixed on the top plate 10 of the handling chamber 2 on the inlet side of the handling chamber, and the movable feed blades 12 are attached and handled. As the drum 5 is driven and rotated, the culm is threshed by the action of the spiral toothing 6 and is transported in the axial direction of the drum in cooperation with the feed blades 11 and 12. The sorting unit 3 is provided with a swinging sorting case means 3a, a wind sorting kara 3b, a first item collecting screw conveyor 7, and a second item reducing screw conveyor 8, and swinging and sorting the grains dropped and supplied from the receiving net 4. The grains processed by the case 3a and dropped and supplied from the swing sorting case 3a are subjected to the wind selection processing by the action of the Karamin 3b, and the threshed grains are sent from the screw conveyor 7 for collecting the first product to the Glen tank by the bucket conveyor 9. 2 items that are not properly selected
Swing sorting case 3 from screw conveyor 8
It is configured to return to the front of a. As shown in FIGS. 2 and 3, in order to form a fixed feed blade 11, a first feed blade 11 a and a second feed blade 11 b disposed on the lower side in the flow direction of the processed material are provided. 11a, 1
The guide surface 1b is arranged on substantially the same imaginary plane, and the workpiece flowing in the circumferential direction of the handling cylinder is guided in the axial direction of the handling cylinder by a long distance between the two feed blades 11a and 11b. It is configured so that turbulence in flow can be suppressed. The sensor 13 oscillated by the processing object is disposed closer to the first feed blade 11a on the lower side in the processing object flow direction, and the second feed blade 11b is positioned closer to the sensor 13 on the lower side in the processing object flow direction. The pivotal support 13a that is arranged and swingably supports the sensor 13 is disposed on the upper side of the guide surface end 11c of the first feed blade 11a and the guide surface start end 11d of the second feed blade 11b, in the processing object guide direction, The free end of the sensor 13 is disposed on the lower side in the workpiece guide direction from the guide surface end 11c and the guide surface start 11d, and the workpiece toward the back side of the feed blade near the sensor 13 is guided by the two feed blades 11a and 11b. The configuration is such that reverse flow is suppressed, and malfunction of the sensor 13 due to the processing object being caught on the sensor pivot 13a can be prevented. During operation, the sensor 13 is formed so as to come into contact with the second feed blade 11b so as to be in a posture with a small amount of protrusion toward the guide surface,
As shown in FIG. 4, the height X of the guide surface end 11c of the first feed blade 11a, the height Y of the sensor 13, and the second
The height Z of the guide surface start end 11d of the feed blade 11b is set to be higher toward the former. The movable feed blades 12 are rotatably mounted around the support shaft 14, and all the movable feed blades 12 are connected to the interlocking rods 15, so that the feed angles of all the movable feed blades 12 can be adjusted according to the type of the workpiece. It is configured to be adjusted by 15 driving devices. As shown in FIGS. 5 and 6, in the bucket conveyor 9 for supplying the first item to the Glen tank, the support shaft 19 of the lower sprocket 18 with respect to the chain 17 to which the bucket 16 is attached is removably bolted to the case body 20. Two connected lids 2
1, 22, and over the bearings 23 attached thereto, the lids 21, 22, the support shaft 19, the lower sprocket 18
And a cover 24 for preventing grains falling in the case main body 20 from falling on the lower sprocket 18.
It is mounted in a cantilever shape so that it can be integrally attached to and detached from the device 1.

[Alternative Embodiment] The sensor 13 may be any one that stops the operation of the automatic control device for the sorting unit such as adjusting the angle of the chaff sheave, the one that detects the flow rate of the processed material in the handling chamber 2, and any other one. The arrangement of the sensor 13 can be appropriately selected according to the purpose of detection.

In the claims of the utility model registration, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view of a threshing apparatus.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a development view of the inner surface of the top plate.

FIG. 4 is a partially enlarged view of a main part.

FIG. 5 is a side view showing a part of the bucket conveyor.

FIG. 6 is a longitudinal sectional view showing a part of a bucket conveyor.

FIG. 7 is a development view of an inner surface of a top plate in a conventional example.

[Explanation of symbols]

 2 Handling Room 5 Handling Cylinder 10 Top Plate 11a Feeding Blade 11b Second Feeding Blade 11c End of Guide Surface 13 Sensor 13a Pivot

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yukio Sakaguchi 64 Ishizukita-cho, Sakai-shi, Osaka Kubota Sakai Works Co., Ltd. (56) References JP-A-3-259012 (JP, A) JP-A-2- 107122 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01F 12/00-12/60

Claims (1)

(57) [Scope of request for utility model registration] 1. A feed blade (11a) for guiding a workpiece flowing in a circumferential direction of a handling cylinder (5) in an axial direction of a handling cylinder is fixed to a top plate (10) of a handling chamber (2). A sensor (13) oscillated by the sensor is disposed close to the feed blade (11a) on the lower side in the processing object flow direction, and the sensor (1)
A pivot portion (13a) for swingably supporting 3) is disposed on the upper side of the guide surface end (11c) of the feed blade (11a) in the processing object guide direction, and the free end of the sensor (13) is connected to the free end of the sensor (13). An axial flow threshing device arranged on a lower side of a guide direction of a workpiece from a guide surface end (11c), wherein a second feed blade (1) for guiding a workpiece from the feed blade (11a) is provided.
1b) is fixed to the top plate (10) in a state in which it is close to the sensor (13) on the lower side in the processing object flow direction,
An axial flow threshing device wherein the guide surfaces of the two feed blades (11a) and (11b) are arranged on substantially the same virtual plane.