JPH10304754A - Unloader device for combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of parts such as an operation switch, etc., for the extending/contracting operation means of a horizontal supply screw conveyor in a state where the break of the storing holding tool, etc., of the conveyor is evaded. SOLUTION: This unloader device for a combine is constituted so as to be freely extending/contracting possible in its longitudinal direction by an actuator 21 and is provided with a detecting means 29 for detecting whether or not the horizontal supply screw conveyor is in a storage state at a prescribed storing position. When it is detected that the horizontal supply screw conveyor is not in the storage state by the detecting means 29, only the actuator 21 is driving-operated by the operations of an operation switches SU and SD for changing and setting the elevating/lowering of a machine body against the ground or left and right inclination by a manual operation, the horizontal supply screw conveyor is actuated by extension/contraction and only the change setting of the elevating/lowering of the machine body 2 against the ground and left and right inclination is executed when the storage state is detected by the detecting means 29 in configuration.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal feed screw conveyor which feeds and discharges grains to an upper end portion of a vertical feed screw conveyor provided for feeding grains at a lateral side of a Glen tank. The present invention relates to a combine unloader device in which a horizontal feed screw conveyer is arranged so as to be rotatable around an upper and lower axis and undulating and oscillating around a horizontal axis, and the lateral feed screw conveyor is configured to be extendable and contractible in its longitudinal direction by an actuator.

[0002]

2. Description of the Related Art Conventionally, in this type of combine unloader device, in order to artificially extend and retract the transverse screw conveyor, the transverse feed screw conveyor in the storage position is temporarily released from the storage position. Then, a dedicated operation switch for the expansion and contraction operation provided in the driving section is operated. In other words, when not in use, a state in which the horizontal feed screw conveyor is held by a holder for holding the position in the predetermined storage position on the Glen tank or threshing device so as not to hinder harvesting work, transporting the body or storing in the barn or the like. The horizontal screw conveyor is stored in a shortened state so that it can be stored as compactly as possible.

[0003]

However, in the combine unloader of the above-mentioned conventional structure, the operator forgets that the horizontal feed screw conveyor is stored in the holder and expands / contracts the horizontal feed screw conveyor. There is a possibility that the holder may be damaged by expanding and contracting the horizontal feed screw conveyor in the state of being stored,
There was a possibility that troubles such as the screw conveyor colliding with other objects might occur. Also, conventionally,
Although the operation unit is provided with a dedicated operation switch for extending and retracting the lateral feed screw conveyor, the provision of such a dedicated member also has a problem that the number of parts is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and includes a mechanism for operating a switch such as an operation switch by moving a telescopic operation means of a laterally feeding screw conveyor in a state of avoiding damage to a storage holder or the like of the conveyor. An object of the present invention is to provide a combine unloader device that can be configured with a reduced number of points.

[0005]

[Means for Solving the Problems]

(Structure) The combine unloader device according to claim 1 of the present invention is configured to laterally feed the lifted grains to an upper end portion of a vertical feed screw conveyor for grain lifting provided on a lateral side of the Glen tank. A horizontal feed screw conveyor to be discharged is pivoted around the vertical axis, and connected continuously so as to be able to undulate and swing around the horizontal axis, and the horizontal feed screw conveyor is configured to be extendable and contractible in its longitudinal direction by an actuator, And a detecting means for detecting whether or not the horizontal feed screw conveyor is stored at a predetermined storage position, and when the detecting means detects that the horizontal feed screw conveyor is not in the stored state, The horizontal feed screw conveyor is driven by operating only the actuator by operating an operation switch for manually setting and changing the vertical inclination of the ground or the left and right inclination. When the retracted state is detected by the detection means, the operation of the operation switch is performed only to raise or lower the aircraft with respect to the ground or to change the inclination of the aircraft left and right. .

(Operation) According to the configuration of the first aspect of the present invention, even if the operation switch is operated to expand and contract the horizontal feed screw conveyor in the retracted state, the operation switch is used. In the operation, since only the vertical movement of the machine body or the change setting of the right and left inclination can be performed, the holding tool for holding the horizontal feed screw conveyor in the stored state is not damaged. On the other hand, when the lateral feed screw conveyor is moved from the stowed state, when the operation switch is operated, it is possible to extend and retract the lateral feed screw conveyor without setting the aircraft to the ground or changing the left / right inclination. become.

(Effects) Therefore, according to the configuration of the first aspect of the present invention, the operation switch for performing the expansion / contraction operation of the horizontal screw conveyor is a switch for changing the vertical movement of the airframe or the right / left inclination. Because it is also used
Since the number of parts as a switch can be reduced, the structure can be simplified and the cost can be reduced.Also, it is possible to avoid erroneous expansion and contraction when the traversing screw conveyor is in the retracted state. There is an advantage that it is possible to avoid the occurrence of problems such as undue damage or collision with other objects during expansion and contraction.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of a combine. This combine is configured such that a body 2 supported by a pair of right and left crawler traveling devices 1 and 1 is equipped with a pre-cutting device 3, a threshing device 4, a boarding operation unit 5, a Glen tank 6, and the like.

As shown in FIG. 1, a bottom screw conveyor 7 is provided at the bottom of the Glen tank 6 along the front-rear direction, and the bottom screw conveyor 7 is located rearward of the rear wall 6A of the Glen tank 6. A vertical feed screw conveyor 8 is provided for feeding the grains in a state of being interlocked to the extended rear end. This vertical feed screw conveyor 8
At the upper end of the side, a horizontal feed screw conveyor 10 that feeds the fed kernels sideways and then discharges them from the outlet 9 at the tip thereof,
They are connected so as to be rotatable around the vertical axis Z and to swing up and down around the horizontal axis X. Here, the bottom screw conveyor 7, the vertical feed screw conveyor 8, and the horizontal feed screw conveyor 10 constitute an unloader device U.

As shown in FIG. 6, the track frame 11 of the pair of right and left crawler traveling devices 1 and 1 and the main frame 2A of the body 2 are connected to each other via a four-link mechanism 13 which is moved up and down by a hydraulic cylinder 12. It is configured to be able to move up and down separately. As shown in FIGS. 7 and 8, the cross operation lever 14, which is biased to return to the neutral position for manually lifting and lowering each crawler traveling device 1, 1 with respect to the body 2, is operated by the riding operation unit 5. The control box 16 is provided on the left side of the seat 15. By operating the cross control lever 14 from the neutral position N to the left and right sides, the fuselage 2 can be controlled to have an appropriate inclined posture in the left and right directions, or forward from the neutral position N of the cross control lever 14. By lowering the fuselage 2 to the ground,
By operating the cross control lever 14 backward from the neutral position N, the body 2 is controlled to be lifted above the ground.

Then, the horizontal feed screw conveyor 1
0 is configured to be stretchable. That is, as shown in FIGS. 1 to 4, the horizontal screw conveyor 10 includes a first screw conveyor 17 forming a root portion supported by an upper end portion of the vertical screw conveyor 8, and the first screw conveyor 17. And a second screw conveyor 18 which is supported so as to be able to move back and forth.
Specifically, the first screw conveyor 17 having a cylindrical shape is used.
The outer case 18A of the second screw conveyor 18 is slidably fitted in the outer cylinder case 17A in the screw axis direction. Then, in order to slide the second screw conveyor 18, the outer cylinder case 17 is moved.
A on the lower surface portion of the rack gear 1 (the upper side in the grain conveying direction in the horizontal screw conveyor 10 is the front).
9 are provided side by side, and a pinion gear 20 meshing with the rack gear 19 is provided at the front end of the outer case 18A in a state of being rotationally driven by an electric motor 21 as an actuator. By appropriately driving the electric motor 21 in the forward and reverse directions, the pinion gear 20 is rotated, and the second screw conveyor 18 slides with respect to the first screw conveyor 17. In order to detect the limit of movement of the outer case 18A, dogs 22 and 23 are provided at the front end of the rack gear 19 and the side surface of the outer case 18A, respectively.
Limit switches 24 and 25 for detecting the presence or absence of 2 and 23 are provided on the outer case 18A side.

As shown in FIG. 2, the screw shaft 17C of the screw body 17B of the first screw conveyor 17 is formed as a cylindrical shaft, and is spline-fitted to the screw shaft 17C so as to be able to move back and forth in the axial direction. The combined transmission shaft 26 is erected at an upper portion of the internal space of the outer case 18A with its ends being supported by bearings. The screw body 18B of the second screw conveyor 18 is disposed at a lower portion of the internal space of the outer case 18A, and is transmitted via a chain transmission mechanism 27 interlockingly connected to the transmission shaft 26. The screw body 18B is driven to rotate by the power from the screw conveyor 17. Accordingly, as the outer case 18A moves with respect to the outer cylindrical case 17A, the transmission shaft 26 also moves out of the screw shaft 17C, and the transmission shaft 26 always moves from the screw shaft 17C.
Power transmission is possible. Then, as shown in FIG. 1, the screw body 14B of the second screw conveyor 14
Is set to be substantially the same as the screw diameter of the bottom screw conveyor 7.

[0013] As shown in FIG. 5, a metal fitting 28 for receiving and holding the horizontal feed screw conveyor 10 in the most reduced state in the storage position on the Glen tank 6 in a mounted state is mounted on the body 2. Has been installed. The receiving fitting 28 is provided with a limit switch 29 as a detecting means for detecting a mounting posture when the outer cylinder case 17A of the first screw conveyor 17 is normally mounted. The detection signal of the limit switch 29 is input to a control device 30 arranged in the control box 16 for controlling the microcomputer. In addition, detection signals of four limit switches SU, SD, SL, and SR for detecting operations at the front, rear, left, and right operation positions of the cross control lever 14 are input to the control device 28. The limit switches 24 and 2 for detecting a limit position of expansion and contraction of the lateral feed screw conveyor 10.
5 is also input.

As shown in FIG. 1, the horizontal feed screw conveyor 10 includes an auger turning electric motor 31.
Is rotated around the vertical axis Z by
The hydraulic cylinder 32 is driven to swing up and down around the horizontal axis X. In order to pivot the horizontal feed screw conveyor 10 around the vertical axis Z by manual operation and swing up and down around the horizontal axis X, the control box 16 includes a switch S for turning the horizontal feed screw conveyor 10 left and right.
A cross operation lever 33 for operating the switches S3 and S4 for raising and lowering S1, S2 is provided. These switches S1
The operation signals of S4 to S4 are also input to the control device 30.

In the above construction, when a normal mowing operation is performed, the horizontal feed screw conveyor 10 receives the metal fittings 28.
The storage is detected by the limit switch 29, so that the control device 30 controls the cross operation lever 14 by the mode setting based on the detection signal. Control is performed so that the height adjustment of the body 2 with respect to the ground and the tilt adjustment in the left and right directions can be performed by an artificial operation. At this time, the expansion / contraction operation of the horizontal feed screw conveyor 10 is disabled. Then, when the grain is discharged from the Glen tank 6 to, for example, a transportation vehicle after the harvesting operation, the horizontal feed screw conveyor 10 in the stored state is switched to the non-storage posture by performing the undulating operation and the turning operation. Will be. Therefore, the limit switch 29 detects that the horizontal feed screw conveyor 10 is not in the retracted state, and based on the detection result, the control device 3
By setting the mode to 0, the lateral feed screw conveyor 10 is controlled to be extended by the forward operation of the cruciform control lever 14 and to be shortened by the backward operation of the cruciform control lever 14. Will do. At this time, it is impossible to change the height of the body 2 with respect to the ground and the inclination of the body 2. The cross control lever 14
Left and right operations and the expansion and contraction operation of the lateral feed screw conveyor 10 may be associated with each other.

[Brief description of the drawings]

FIG. 1 is an overall side view showing a combine.

FIG. 2 is a longitudinal sectional side view showing a horizontal-feed screw conveyor having a telescopic structure.

FIG. 3 is a longitudinal sectional front view showing a horizontal feed screw conveyor.

FIG. 4 is a side view of a reduced state (a) and an expanded state (b) of the lateral feed screw conveyor.

FIG. 5 is a rear view showing a receiving bracket and the like.

FIG. 6 is a side view showing the crawler traveling device.

FIG. 7 is a plan view showing a control unit.

FIG. 8 is a block diagram showing a control structure.

[Explanation of symbols]

 2 Body 6 Glen tank 8 Vertical feed screw conveyor 10 Horizontal feed screw conveyor 21 Actuator 29 Detecting means SU, SD Operation switch

Continued on the front page (72) Inventor Toshikatsu Otani 64 Ishizukita-cho, Sakai City, Osaka, Japan, inside Kubota Sakai Works, Ltd. ) Inventor Shigeo Fujita 64 Ishizukita-cho, Sakai City, Osaka Inside Kubota Sakai Works

Claims (1)

[Claims] 1. A horizontal feed screw conveyor for feeding and discharging the transported grains is provided on the upper end of a vertical feed screw conveyor for transporting the grains provided on the lateral side of the Glen tank. And the horizontal feed screw conveyor is constructed so as to be able to swing up and down around the horizontal axis, and the horizontal feed screw conveyor is configured to be extendable and contractible in the longitudinal direction by an actuator, and the horizontal feed screw conveyor is located at a predetermined storage position. A detecting means for detecting whether or not the machine is in a stowed state, and when the detecting means detects that the traversing screw conveyor is not in a stowed state, the aircraft is manually operated for vertical ascending and descending or tilting left and right. Only the actuator is driven and operated by operating the operation switch that is changed and set in the step, the transverse feed screw conveyor is extended and retracted, and the storage state is detected by the detection means. In some cases, the unloader device of the combine is configured to perform only the setting for changing the inclination of the body with respect to the ground or the right and left by operating the operation switch.