JP2005185108A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operating mechanism of the discharging part of a combine harvester with slight restrictions on arrangement without sacrificing the operability of an elevator according to simple constitution. <P>SOLUTION: A wire 19 is composed of a first outer wire 22 on the side of a first conveying part, a second outer wire 23 on the side of a second conveying part and an inner wire 21 inserted into the first and the second outer wires. The top 22a of the first outer wire 22 is attached to a part 29 of the first conveying part near a connecting part 30 of the first and the second conveying parts and the rear end 23b of the second outer wire 23 is attached to a part 31 of the second conveying part near the connecting part of the first and the second conveying parts. Thereby, the operating mechanism 16 of the discharging part is composed so that the ends 22a and 23b of the first and the second outer wires approach or separate by lifting of the second conveying part to change the discharging part to the downward side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  According to the present invention, a whipping device that conveys grain from a grain storage unit to the outside of the machine is provided in a first conveyance unit provided in the machine body and a terminal part of the first conveyance unit that can swing up and down. The present invention relates to a combine that includes two transport units.

  Conventionally, in this type of combine, the grain in the field is harvested, the grain is threshed from the harvested cereal, the threshed grain is selected and stored in the grain storage unit, and the stored grain is stored as needed. The cerealing device can be discharged into the loading platform of the grain conveying vehicle or the grain storage bag through the cerealing device, and the cerealing device is configured to be able to rotate up and down as appropriate.

  And like what is indicated by patent documents 1, the movable composition which can set the direction of the discharge part of the tip part of a grain raising device so that the discharge direction of a grain can be set (the 2nd of patent documents 1) There are those shown in 16, 17, 18) in the figure. In this case, for example, at the start of the operation of discharging the kernel to the loading platform of the kernel transporting vehicle, the kernel is discharged by discharging the kernel in a state where the discharging section is arranged close to the bottom of the loading platform. In order not to scatter outside, when the amount of grain loaded in the bed increases with the progress of work, the cerealing device is moved upward.

  However, when the cerealing device is moved up and down, the ground grain discharge angle of the discharge unit changes, so that the grain cannot be discharged to a predetermined position, and the grain is efficiently and evenly loaded. I can't. For this problem, as disclosed in Patent Document 2, an operation mechanism (in FIG. 3 of Patent Document 2) in which the discharge portion is changed in accordance with the vertical movement of the cerealing device. 50). According to this structure, even if the up-and-down operation of the cerealing device is performed, the ground grain discharge angle of the discharge unit is kept substantially constant.

Japanese Utility Model Publication No. 62-83437 (16, 17, 18 in FIG. 2) Japanese Patent Laying-Open No. 2003-180147 (50 in FIG. 3)

  However, in the configuration as described above, the configuration for maintaining the ground grain discharge angle (39, 52, 62 in FIG. 6 and 23a, 58, 54 in FIG. 4 etc. in Patent Document 2) is complicated. There is a problem that the number of parts increases or the operational load of the turning / up / down operation of the cerealing device increases because the components are concentrated on the tip of the cerealing device. Furthermore, since the arrangement of the operation mechanism is limited by the shape of the cerealing device, for example, when the operation mechanism shown in Patent Document 2 is provided in a type of cerealing device that is folded to be stored, a considerable design There is a problem of being restricted.

  Therefore, in view of the above circumstances, the present invention has an object of configuring a combine discharge unit operating mechanism with a simple configuration and with few restrictions on arrangement without sacrificing the operability of the cerealing device.

(Constitution)
A feature of the present invention is that a whipping device that conveys the grain from the grain storage unit to the outside of the machine is provided so as to be swingable up and down at the first conveyance unit provided in the machine body and the terminal part of the first conveyance unit. Further, the present invention has the following configuration in a combine that includes the second transport unit and in which the discharge unit is swingably connected to the terminal end of the second transport unit.
A wire connection is made across the power unit and the discharge unit provided on the machine body side, and the discharge unit operation mechanism is configured to change the direction of the discharge unit via the wire by the power unit,
The wire is constituted by a first outer wire on the first transport unit side, a second outer wire on the second transport unit side, and an inner wire inserted into the first and second outer wires,
Attach the upper end of the first outer wire to the part of the first transport part near the connection part of the first and second transport parts,
Attach the rear end of the second outer wire to the part of the second transport part in the vicinity of the connection part of the first and second transport parts,
The end of the first and second outer wires approaches or separates as the second transport unit rises, and the discharge unit is changed downward.

(Function)
The effects produced by the features of the present invention are as follows. First, since the power unit of the discharge unit operating mechanism for changing the direction of the discharge unit is provided on the machine body side, it is not necessary to provide the power unit on the second transport unit side that moves up and down. Therefore, the operation load when the second transport unit is swung up and down is reduced. Moreover, since the discharge part operation mechanism changes the direction of the discharge part via the wire, the transmission path of the operation force generated in the power part can be arbitrarily configured.

  Next, the wire connected between the power unit and the discharge unit is constituted by the first outer wire, the second outer wire on the second transport unit side, the inner wire inserted into the first and second outer wires, and the upper end of the first outer wire. Is attached to the part of the first transport part near the connection part of the first and second transport parts, and the rear end of the second outer wire is attached to the part of the second transport part near the connection part of the first and second transport parts Since the end portions of the first and second outer wires are attached to or separated from each other when the second transport unit is raised, the connecting portion between the first and second transport units is raised when the second transport unit is lifted. The length of the inner wire divided into the end portion of the first outer wire and the end portion of the second outer wire in the vicinity of is reduced or increased. At this time, the inner wire extending from the end of the second outer wire on the terminal end side of the second transport unit is fed out or retracted as the second transport unit is raised.

  On the other hand, since the end portions of the first and second outer wires approach or separate from each other and the discharge portion is changed downward, the end portion of the second outer wire on the terminal end side of the second transport portion is When the extending inner wire is extended or retracted as the second transport unit is raised, the discharge unit is changed to the downward side. Thus, when the 2nd conveyance part goes up, since a discharge part will be changed below in conjunction with the rise, the change of the ground grain discharge angle of a discharge part will be controlled.

  Moreover, since the structure of Claim 1 which acts as mentioned above uses the component part of the discharge part operation mechanism for setting operation of the discharge direction of a discharge part together, it is a 2nd conveyance part and discharge. There are few components necessary only for the linking operation with the unit, and the discharge unit operating mechanism with the linking operation function can be configured with a simple configuration that suppresses the increase in the number of components.

(effect)
According to the feature of the present invention, the discharge unit operation mechanism with the linkage operation function can be configured with a simple configuration that suppresses the increase in the number of parts, so that the up and down and rotation operation load of the second transport unit is not increased. Therefore, it is possible to obtain a discharge direction operation mechanism with less restrictions on the arrangement of the transmission path for transmitting the direction operation force of the discharge port and with a small increase in the number of parts. Therefore, the combine discharge part operation mechanism which improved the discharge performance of a grain, maintaining the operativity, design efficiency, production efficiency, maintenance efficiency, etc. of a cerealing device is realizable.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show the combine. In this combine, a cutting pretreatment device 3 is mounted on a front portion of a body frame 2 supported by a pair of left and right crawler travel devices 1 so as to move up and down, and a threshing device 4, a boarding operation unit 5, a driving unit 6, and a Glen tank. 7 (corresponding to the grain storage portion of the present invention) and the like are mounted on the machine frame 2 and configured.

  In the grain tank 7, the grains threshed by the threshing device 4 are fed and stored by a lifting screw conveyor (not shown). The grain stored in the Glen tank 7 is conveyed to the outside and discharged by an unloader device 9 (corresponding to the whipping device of the present invention). In other words, the unloader device 9 is configured so that the bottom screw conveyor 10 disposed along the front and rear of the bottom of the Glen tank 7 and the grains conveyed rearward by the bottom screw conveyor 10 are moved upward at the rear side portion of the Glen tank 7. A vertical feed screw conveyor 11 (corresponding to the first transport unit of the present invention) and a horizontal feed screw conveyor 12 (in the present invention) for laterally feeding and discharging the grains fed by the vertical feed screw conveyor 11 Equivalent to the second transport section).

  As shown in FIGS. 1 and 2, the transverse feed screw conveyor 12 and the longitudinal feed screw conveyor 11 are connected at a connection portion 30. The transverse feed screw conveyor 12 is provided so as to be swingable up and down around the connecting portion 30 by the electric cylinder D with respect to the longitudinal feed screw conveyor 11, and the longitudinal feed screw conveyor 11 is vertically arranged with respect to the Glen tank 7. It is provided so as to be rotatable by an electric motor around a longitudinal axis along the axis.

  The lateral feed screw conveyor 12 is configured to be switchable between a predetermined retracted posture and a desired grain discharging posture by the above-described undulation and rotation around the vertical axis, and the switching is performed on an operation panel of the boarding operation unit 5 or the like. The operation is performed by operating the provided operation switch or the like. When the lateral feed screw conveyor 12 is not used for the grain carrying out operation, the lateral feed screw conveyor 12 is set in a retracted posture along the Glen tank 7 and extended forward, and the intermediate portion thereof is the support member 13. Place on and hold. The lateral feed screw conveyor 12 is formed with a bent portion 14 so as to be bent and folded at a substantially central portion in the length direction thereof, so that it can be folded during transportation.

  The harvested grain is threshed and sorted and stored in the Glen tank 7, and the grain stored in the Glen tank 7 is discharged into the loading platform of the grain conveying vehicle through the unloader device 9. When discharging the grain into the loading platform of the grain transporting vehicle, the posture of the lateral feed screw conveyor 12 is set low so as to be close to the bottom of the loading platform at the start of the operation. As the grain discharge progresses, the grain accumulates on the loading platform. Therefore, in order to continue the discharge operation, the height of the discharge unit 15 is appropriately increased according to the amount of the grain deposited. Thus, the upward swing angle of the transverse feed screw conveyor 12 increases as the discharge operation proceeds. The unloader device 9 is provided with a discharge unit operation mechanism 16 so that the angle of the discharge unit 15 provided at the end portion of the horizontal feed screw conveyor 12 is changed in accordance with the posture change of the horizontal feed screw conveyor 12. Below, the discharge part operation mechanism 16 is demonstrated.

  The discharge unit operation mechanism 16 will be described with reference to FIGS. 1 and 7. The discharge unit operating mechanism 16 includes a discharge unit 15 provided at the end portion of the transverse feed screw conveyor 12 so as to be able to swing, a swing member 17 that swings the discharge unit 15, and a discharge unit 15 via the swing member 17. Is urged counterclockwise in a side view, and is provided on the back of the Glen tank 7 in the vicinity of the lower end of the vertical feed screw conveyor 11 and a biasing spring 18 that maintains the tension of the inner wire 21 described later. The power unit 20 includes a power unit 20 and a wire 19 that connects the power unit 20 and the swing member 17. An end portion extension cover 24 having a substantially fan shape in a side view is fixed to the end portion of the transverse feed screw conveyor 12. The end portion extension cover 24 is provided to cover a gap generated between the discharge portion 15 and the end portion of the lateral feed screw conveyor 12 due to the swinging of the discharge portion 15. A swing shaft core 25 is erected in the vicinity of a position corresponding to the fan-shaped center of the end portion extension cover 24, and serves as a swing center of the discharge unit 15 and the swing member 17. Since the rocking member 17 is fixed to the discharge unit 15 via the fixing screw 26, the rocking member 17 is rocked around the rocking shaft core 25 via the wire 19 connected at the wire connecting part 28. As a result, the discharge unit 15 also swings integrally around the swing axis 25. In the swing member 17, a locking hole 27 on the opposite side of the wire connecting portion 28 with respect to the swing shaft core 25 is connected to an outer support bracket 32 fixed to the end portion of the transverse feed screw conveyor 12 by an urging spring 18. The swing of the discharge part 15 is urged counterclockwise in a side view of FIG. 7 by the tension acting between the outer support bracket 32 and the locking hole 27.

  The configuration of the power unit 20 is shown in FIGS. 3 and 4. The power unit 20 is provided on an electric motor 20a that is driven and controlled by a control device (not shown), a gear case 20f that houses a transmission gear, a bracket 20e that fixes and supports the electric motor 20a and the gear case 20f, and an output shaft of the transmission. The pinion gear 20b, the slide member 20c that is slid up and down by the rotation of the pinion gear 20b, and the wire attachment pin 20d provided at the lower end of the slide member 20c. The slide member 20c is slid up and down via a pinion gear 20b that is rotationally driven by a control signal generated by the control device, and the input end 21c of the inner wire 21 connected to the slide member 20c is operated via a wire attachment pin 20d. The Then, this operating force is transmitted to the output end 21a of the inner wire 21, and the discharge direction of the discharge portion 15 is set and changed (see FIG. 5). The transmission of the operating force of the discharge unit 15 by the wire 19 is effective only in the direction of the pulling operation at the input end 21c, and the operation force of the discharge unit 15 in the opposite direction is obtained by the biasing force of the biasing spring 18.

  Based on FIG.5 and FIG.6, the mode of the wiring of the wire 19 is demonstrated below. The wire 19 includes an inner wire 21, a first outer wire 22, and a second outer wire 23. The lower end portion 22 b of the first outer wire 22 is fixedly connected to the bracket 20 e of the power unit 20, and the upper end portion 22 a is fixedly connected to an outer support bracket 29 fixed to the connection portion 30. The lower end portion 23 b of the second outer wire 23 is fixedly connected to an outer support bracket 31 fixed at a position close to the connection portion 30 of the lateral feed screw conveyor 12, and the upper end portion 23 a is the end of the lateral feed screw conveyor 12. It is fixedly connected to the outer support bracket 32 on the side. Further, the bending portion 21 b of the inner wire 21 is in a state of being partially wound around the outer peripheral surface of the connection portion 30 and being bent. In addition, the 1st outer wire 22 and the 2nd outer wire 23 are latched so that a routing route may not shift | deviate largely by the outer wire guide 33 provided in the part of the longitudinal feed screw conveyor 11 and the transverse feed screw conveyor 12. FIG. (See Fig. 1 and Fig. 2)

  The discharge unit operation mechanism 16 configured as described above can set the discharge direction of the discharge unit 15 via the wire 19 and the direction of the discharge unit 15 is automatically set according to the upward operation of the lateral feed screw conveyor 12. Change operation. Specifically, it is as follows. At the start of the grain discharge operation, the transverse feed screw conveyor 12 is in a low posture, and the discharge direction of the discharge unit 15 can be set by the pulling operation of the inner wire 21 by the power unit 20 and the return operation by the biasing force of the biasing spring 18. . Further, when the transverse screw conveyor 12 is lifted, the lower end portion 23b of the second outer wire 23 and the upper end portion 22a of the first outer wire 22 are brought close to each other, so that the length of the curved portion 21b is shortened. Since the output end 21a of the inner wire 21 extending from the upper end portion 23a of the second outer wire 23 is biased in the feeding direction by the biasing spring 18, the length of the curved portion 21b of the inner wire 21 is shortened. Only the payout operation is performed. Thus, the swinging member 17 biased by the biasing spring 18 operates the discharge portion 15 in the counterclockwise direction in a side view of FIG. When the transverse screw conveyor 12 is lowered, the lower end portion 23b of the second outer wire 23 and the upper end portion 22a of the first outer wire 22 are separated from each other, so that the length of the curved portion 21b is increased. As a result, the output end 21a of the inner wire 21 extending from the upper end portion 23a of the second outer wire 23 is pulled in, the swing member 17 is operated in the clockwise direction in the side view of FIG. Is done.

  As described above, once the direction of the discharge unit 15 is set, the discharge direction is automatically changed by the raising and lowering operation of the lateral feed screw conveyor 12, and the direction of the discharge unit 15 that is convenient for the grain discharge operation is changed. Can be maintained.

[Another Embodiment of the Invention] The wiring method of the wire 19 in the [Best Mode for Carrying Out the Invention] described in the previous section is configured by winding a part of the inner wire 21 around the connection portion 30. However, the wire 19 may be routed through the inside of the connecting portion 30. In this case, when the traverse screw conveyor 12 is lifted, the lower end 23b and the upper end 22a are separated from each other, contrary to the case of the above-described embodiment, so that they are connected to the respective ends of the swing member 17. What is necessary is just to connect the output end 21a and the urging | biasing spring 18 contrary to the above-mentioned Example.

Overall side view showing the combine Overall plan view showing the combine Enlarged side view showing the power section Enlarged rear view showing the power section Schematic diagram showing wire connection configuration Side view of unloader device connection (a) Before ascending operation (b) After ascending operation Partial vertical cross-sectional side view around the discharge part (a) Before the lift operation (b) After the lift operation

Explanation of symbols

7 Grain storage unit 9 Flour raising device 11 First conveyance unit 12 Second conveyance unit 15 Discharge unit 16 Discharge unit operation mechanism 19 Wire 20 Power unit 21 Inner wire 22 First outer wire 22a Upper end 23 Second outer wire 23b Rear end 30 Connection portion

Claims (1)

A second conveying unit provided with a cerealing device that conveys the grain from the grain storage unit to the outside of the machine, and a first conveying unit provided in the machine body and a terminal unit of the first conveying unit that can swing up and down. The discharge part is connected to the end part of the second transport part so as to be swingable up and down,
A wire connection is made across the power unit provided on the machine body side and the discharge unit, and the discharge unit operation mechanism is configured to change the direction of the discharge unit via the wire by the power unit,
The wire is constituted by a first outer wire on the first transport unit side, a second outer wire on the second transport unit side, and an inner wire inserted into the first and second outer wires,
The upper end of the first outer wire is attached to a portion of the first transport unit in the vicinity of the connection portion of the first and second transport units,
A rear end of the second outer wire is attached to a portion of the second transport unit in the vicinity of the connection portion of the first and second transport units,
A combine configured such that as the second transport unit rises, ends of the first and second outer wires approach or separate from each other and the discharge unit is changed downward.

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