JPH07274679A - Axial flow-type thresher - Google Patents

Abstract

PURPOSE:To reduce the noise generated from the upper part of a threshing chamber and at the same time to improve the durability of a driving apparatus for adjusting the angles of dustdelivering valves, in an axial flow-type thresher. CONSTITUTION:In this axial flow-type thresher, dust-delivering valves 7 for guiding treating material which flows in the peripheral direction of a threshing cylinder 5 into the axial direction of the threshing cylinder are placed on a bending roof 8 of a threshing chamber 2 in a manner that the angles of the dust-delivering valves are freely adjusted by a driving apparatus 16. The upper part of the threshing chamber 2 is covered with a decorative cover to form a rectangular appearance and a driving apparatus 16 for adjusting the angles of the dust-delivering valves is placed in a space S formed by the decorative cover and the bending roof 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a dust-discharging valve for guiding a processing object flowing in the circumferential direction of a handling cylinder in the axial direction of the handling cylinder on a curved top plate of a handling chamber, the angle of which can be adjusted by a drive unit. Axial flow type threshing device.

[0002]

2. Description of the Related Art Conventionally, the bending top plate of the handling room is exposed to the outside,
The drive device for adjusting the angle of the dust sending valve was arranged outside the bent top plate [Japanese Utility Model Laid-Open No. 4-106938, JP-A-4-28].
1714 publication].

[0003]

Since the axial-flow type threshing device is long in the axial direction of the handling cylinder, if the upper part of the handling room is formed only by the curved top plate, the case rigidity at the upper part of the handling room will be insufficient and the noise will be large. Since the drive device for adjusting the dust delivery valve angle is located outside the bent top plate, the drive device is prone to deterioration due to wind, rain, dust, etc., and there is room for improvement in terms of noise suppression and durability improvement. was there. An object of the present invention is to suppress the generation of noise from the upper part of the handling room and to effectively utilize the configuration for improving the durability of the drive device for adjusting the angle of the dust delivery valve.

[0004]

A feature of the present invention is that a dust-discharging valve for guiding a processing object flowing in the circumferential direction of the handling cylinder in the axial direction of the handling cylinder can be adjusted in angle by a driving device. In the axial flow thresher provided on the curved top plate, a decorative cover that makes the exterior of the upper part of the handling chamber rectangular is provided, and the drive device for adjusting the dust delivery valve angle is arranged in the space between the decorative cover and the curved top plate. It is in.

[0005]

That is, the case rigidity of the upper part of the handling room can be sufficiently increased by the cooperation of the decorative cover and the curved top plate which make the outer appearance of the upper part of the handling room rectangular, and the noise generation from the upper part of the handling room can be effectively suppressed. . Since the drive device for adjusting the dust feed valve angle is arranged in the space between the decorative cover and the curved top plate to protect it from wind and rain and dust, the durability of the drive device for adjusting the dust feed valve angle can be sufficiently improved.

[0006]

As a result, noise generation from the upper part of the handling chamber can be sufficiently suppressed, and the durability of the drive device for adjusting the angle of the dust-sending valve can be sufficiently improved. It became so.

[0007]

EXAMPLE As shown in FIG. 1, in constructing an axial flow type threshing device to be mounted on an all culm throw type combine, a handling room 2 communicating with a feed conveyor 1 for supplying culm from a cutting section on the left side of the figure. Is formed in the upper part of the case, the sorting unit 3 is arranged below the handling chamber 2, and a receiving net (concave) 4 for leaking and supplying the processed material from the handling chamber 2 to the sorting unit 3 is provided.

A handling cylinder 5 is horizontally supported in the handling chamber 2 in the front-rear direction, and spiral handling teeth 6a are attached to the outer peripheral surface of the handling cylinder 5 over the entire length, and the spiral handling teeth 6a are independently handled at a predetermined pitch in the circumferential direction. With the teeth 6b attached, a large number of dust-sending valves 7 for guiding the processed object flowing in the circumferential direction of the handling cylinder along with the rotation of the handling cylinder 5 in the axial direction of the handling cylinder are arranged in the axial direction of the handling cylinder. It is attached to the curved top plate 2 of No. 2, and the grain culms are spirally handled by the drive rotation of the handling cylinder 5.
By the action of a and the independent handling tooth 6b, the threshing process is performed and the dust is transferred in the axial direction of the handling barrel in cooperation with the dust sending valve 7.

The sorting unit 3 is provided with a rocking sorting case 9, a wind-picking Kara-no-hi 10, a No. 1 recovery screw conveyer 11, and a No. 2 recovery screw conveyer 12, and the processed products leaked from the receiving net 4 are supplied. The swing sorting case 9 swings and transfers the sieve to perform sieve sorting and wind sorting processing, and the grain is sent from the No. 1 collecting screw conveyor 11 to the Glen tank. It is configured such that it is returned to the front part of the swing selection case 9 from the second item recovery screw conveyor 12 by the lifting device 13.

As shown in FIGS. 2 and 3, each dust delivery valve 7 is rotatably mounted around a vertically oriented fulcrum P and is interlocked with the interlocking rod 14 in the handling chamber 2 to connect to the interlocking rod 14. The fixed arm 15 penetrates through the front and rear elongated holes 8a of the bending top plate 8 and is projected to the outside, and is arranged outside the handling chamber 2 so that the bending top plate 8 is provided.
The longitudinal rod 16a of the driving device 16 attached to the arm 15 is interlocked with the arm 15 through a long hole and a pin so that the angle of each dust-sending valve 7 can be appropriately set by the driving device 16 in accordance with the property of the processing object. I am doing it.

A decorative cover 17 for making the outer appearance of the upper part of the handling room 2 rectangular is placed in a state of being overlapped with a horizontal portion of the bending top plate 8 so as to extend over the entire length of the bending top plate 8 in the axial direction of the handling barrel axis, and a hinge. It is provided in a state of being integrally opened and closed by the bending top plate 8 by 18, and the space between the decorative cover 17 and the bending top plate 8 is closed by front and rear side plates 19 and 20, and the decorative cover 17, the bending top plate 8,
The front and rear side plates 19 and 20 constitute a box-like strength member, and are configured to suppress noise generation from the upper part of the handling chamber 2 due to an increase in case rigidity of the upper part of the handling chamber 2.

Drive device 16 for adjusting the angle of the dust delivery valve 7
Is configured to drive the forward / backward moving rod 16a by screw feeding using an electric motor 16m. The drive device 16 and the rod 21 for stroke end detection, which are connected to the arm 15, and limit switches 22a and 22b.
Is accommodated and arranged at the rear end side of the space S formed between the decorative cover 16 and the curved top plate 10, and is configured to protect the drive device 16 and the stroke detection means by protecting from wind and rain and dust, An inspection cover 23 for the drive unit is provided on the decorative cover 17.

The presence or absence of the processed material in the handling room 2 is detected to select the sorting section 3
Rotation potentiometer 24 as a sensor for controlling
Is the other space S between the decorative cover 17 and the bent top plate 8.
It is located on the front end side of and protected from wind and rain and dust.

As shown in FIGS. 2 and 4, in order to indicate the angle of the dust feeding valve 7, the pointer 25 is arranged on the upper surface of the decorative cover 17 and rotatably mounted around the support shaft 26. In the above, the interlocking rod 27 which integrally swings with the dust feeding valve 7 is interlocked with the interlocking rod 28 which integrally swings with the pointer 25 by the long hole and the pin.

As shown in FIGS. 5 and 6, the grain tank 30 for receiving the grain from the No. 1 product recovery screw conveyor 7 is constituted by three horizontal feed screw conveyors 31, 32, 32 at the bottom of the tank. The vertical feed screw conveyors 33 constituting the unloader are connected to the central horizontal feed screw conveyor 31a.
An auxiliary screw conveyor 34 for supplying grains is provided, and a sensor 35 for detecting whether or not the stored grain level is below a set level at which grains do not flow into the transverse feed screw conveyor 31 at the center, and information from the sensor 35 is provided. Based on the above, when the stored grain level exceeds the set level, only the central horizontal feed screw conveyor 31 is used, and when the stored grain level is less than the set level, all the horizontal feed screw conveyors 31, 32 and both auxiliary screw conveyors 34 are connected. The driving means is automatically operated by the control means on the basis of the information from the sensor 35 so as to be driven, and the left and right width of the bottom portion side of the Glen tank 30 is increased to make the Glen tank 3
The capacity of 0 is increased.

[Other Embodiments] The specific configuration, the number of installations, the arrangement, etc. of the dust delivery valve 7 can be appropriately changed. The drive device 16 for adjusting the dust feed valve angle can be appropriately selected from known drive configurations such as an electric drive type and a hydraulic drive type. The shape of the bent top plate 8 can be appropriately changed to a polygonal shape or a continuous curved shape. The structure and mounting configuration of the decorative cover 17 can be changed as appropriate.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

1 is a vertical side view of the threshing device.

FIG. 2 is a partially cutaway plan view of a main part.

[Fig. 3] Rear view of the longitudinal section of the main part

FIG. 4 is a view on arrow AA of FIG.

FIG. 5 is a vertical sectional front view of the Glen tank.

FIG. 6 is a cross-sectional plan view of a Glen tank.

[Explanation of symbols]

 2 Handling room 5 Handling barrel 7 Bending top plate 8 Dust feeding valve 16 Drive device 17 Decorative cover

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

Claims (1)

[Claims] 1. A dust feed valve (7) for guiding a processing object flowing in the circumferential direction of the handling cylinder (5) in the axial direction of the handling cylinder, a drive device (1).
6) The bending top plate (8) of the handling room (2) can be adjusted in angle.
A cosmetic cover (17) for making the external appearance of the upper part of the handling chamber (2) into a rectangular shape, and the drive device (1) for adjusting the dust delivery valve angle.
The axial flow type threshing device in which 6) is arranged in the space (S) between the decorative cover (17) and the curved top plate (8).