JP6164116B2 - Combine - Google Patents

Description

  The present invention relates to a combine.

  Conventionally, the reaping device is configured to be driven in synchronization with the traveling speed of the traveling device, the feed speed of the feed chain is shifted by a continuously variable transmission dedicated to the feed chain, and the feed chain is synchronized with the vehicle speed. A configuration in which the speed is changed between a low speed and a high speed on the basis of the rotation and the conveyance speed of the harvested grain of the harvesting device is known (Patent Document 1).

Japanese Patent No. 3494877

In the above-mentioned known example, the speed of the feed chain with respect to the threshing device is optimized by shifting the speed based on the speed of conveyance of the harvested grain of the harvesting device. There is a problem that costs increase.
Moreover, there exists a subject that it cannot respond to the supply work of the hand-harvested cereal.
The present invention facilitates switching between normal mowing and threshing work and handling work, and simplifies the transmission configuration to the feed chain.

The invention of claim 1 wherein the travel, a feed chain 13 to supply conveying the culms of cutting device 4 is reaped aircraft forward threshing chamber threshing apparatus 3 provided, the cutting device 4 by the HST 21 The threshing device 3 is configured to transmit the driving rotation of the engine 20 at a constant gear ratio, and the feed chain 13 is transmitted to the reaping device 4. that was a shift rotation transmission path D for transmitting the shift tuning rotation, configured to be driven by two systems of power transmission path between the constant-speed rotation transmitting path T to be transmitted at a constant speed ratio to said threshing apparatus 3, the shift rotation transmission Switching between the path D and the constant speed rotation transmission path T is performed by a mode changeover switch 53, and the drive from the speed change rotation transmission path D to the feed chain 13 is turned on and off in the speed change rotation transmission path D. A shift-side clutch 51 is provided, and a constant-speed clutch 52 for turning on and off the drive from the constant-speed rotation transmission path T to the feed chain 13 is provided in the constant-speed rotation transmission path T. When either of the clutches of the side clutch 51 and the constant speed side clutch 52 is connected, and the emergency stop switch provided at a predetermined position of the machine body is actuated while the constant speed side clutch 52 is engaged, the shift side clutch In a normal harvesting and threshing operation, the feed chain 13 is actuated by the driving force from the variable speed rotation transmission path D, and in the handling operation, it is a constant speed rotation transmission. In response to the driving force from the path T, the feed chain 13 operates.

According to the first aspect of the present invention, it is possible to easily realize and provide a change configuration according to the work mode of the conveyance speed of the feed chain 13 capable of improving workability, and to easily change the transmission path, and to change the transmission side clutch. 51 and the constant speed side clutch 52 can smoothly and reliably change the feed speed of the feed chain 13, and the transmission path of the reaping device 4 that has been urgently stopped is input to the feed chain 13 by entering the speed change side clutch 51. The movement due to the inertia of the feed chain 13 can be quickly stopped.

The side view of a combine. The transmission path schematic diagram. The side view near the start end part of a feed chain. The disassembled perspective view of a conveyance guide and an operation lever. The top view near the start part of a feed chain.

An embodiment of the present invention will be described with reference to a combine drawing. Reference numeral 1 denotes a combiner body frame, 2 a traveling device provided below the fuselage frame 1, 3 a threshing device provided above the fuselage frame 1, and 4 a threshing. A mowing device 5 provided on the front side of the device 3, a grain tank 5 provided on the side of the threshing device 3, and a control unit 6 provided on the front side of the grain tank 5.
The reaping device 4 is provided with a weeding device 8 for weeding cereals raised at the foremost position side by side, and cereals that are divided by the weeding device 8 on the rear side of each weeding device 8. , A cutting blade 10 is provided on the rear side of the pulling device 9, and a threshing device 3 on the rear side of the harvested rice cake cut by the cutting blade 10 on the rear side above the cutting blade 10. A chopped grain culm transport device 11 is provided for transporting to the top (FIG. 1).
The cereals that have been transported to the end portion by the harvested cereal transporting device 11 are transferred to the feed chain 13 of the threshing device 3 in an appropriate posture and transported. The feed chain 13 is stretched along a handling port on one side of the handling chamber on which the handling cylinder 14 (FIG. 2) can be pivoted (FIG. 1). The waste after the threshing process is carried out by the waste chain 15.

The feed chain 13 is configured so that it can be manually handled to supply cereals to the handling room even when the machine is stopped running.
Reference numeral 16 denotes a gutter provided above the feed chain 13.
A rotation transmission path from the engine 20 to the feed chain 13 includes a transmission rotation transmission path D that transmits a transmission synchronized rotation synchronized with a traveling speed transmitted to the reaping device 4, and a constant speed ratio to the threshing device 3. The feed chain 13 is configured to transmit from either the variable speed rotation transmission path D or the constant speed rotation transmission path T. Figure 2).
Therefore, the work can be performed smoothly in both the normal mowing work form and the handling work form.
That is, the rotational power from the engine 20 is continuously driven by the traveling mission device 22 via the hydraulic continuously variable transmission 21 by the traveling mission device 22, and is also supplied to the reaping device 4 via the traveling mission device 22. The transmission is synchronized with the traveling speed from the step transmission 21, and the threshing apparatus 3 is configured to transmit a constant speed rotation with a constant transmission ratio from the engine 20. The synchronous rotation and the constant speed rotation are transmitted to the feed chain 13.

In the hand-handling mode, the rotation of the engine 20 is set to a constant speed that is lower than that during normal work.
Therefore, even if it is a manual handling operation for manually supplying a small amount of cereal, it is threshed by the handling cylinder 23 that rotates at a constant speed, thereby suppressing generation of unhandled items.
Moreover, the cereal conveyance speed of the feed chain 13 is not provided with a special rotation transmission mechanism for the feed chain 13, and a constant speed rotation lower than the cereal conveyance speed during normal operation is transmitted. The safety of the work can be improved.
Moreover, since the threshing apparatus 3 and the feed chain 13 are driven by the low-speed constant speed rotation of the engine 20, energy saving is achieved.
The configuration of the rotation transmission path of the engine 20 to the feed chain 13 is arbitrary, but as an example, the start-end side shaft 31 of the start-end side gear 30 and the end-end side shaft of the end-side gear 32 that are wound around the feed chain 13 are shown. 33, each of which has two axes as input shafts, constant speed rotation of the threshing device 3 on either one of the start end side shaft 31 and the end end side shaft 33, and either one of the start end side shaft 31 or the end end side shaft 33. In addition, the shift synchronous rotation from the hydraulic continuously variable transmission 21 is input.

In this embodiment, the start end side shaft 31 of the start end side gear 30 of the feed chain 13 is mounted on the front gear box 35, and the belt 39 is interposed between the input pulley 37 and the intermediate pulley 38 of the input shaft 36 of the front gear box 35. The intermediate pulley 38 is attached to a transmission rotating shaft 40 to which transmission synchronized rotation synchronized with the traveling speed to the reaping device 4 is transmitted, and passes through the hydraulic continuously variable transmission 21 from the engine 20 and the traveling mission device 22. The drive rotation transmission path that is transmitted to the reaping device 4 is configured as a variable speed rotation transmission path D that is transmitted to the feed chain 13.
Therefore, the structure of the speed change rotation transmission path D from the cutting device 4 to the feed chain 13 can be simply configured.
Reference numeral 44 is a tang of the threshing device 3, 45 is the first spiral, 46 is the second spiral, 47 is a swing sorting shelf, 48 is a suction dust exhaust fan, and each of these input pulleys 49 is driven by the engine 20 to rotate. The drive rotation from the suction dust exhaust fan 48 is transmitted to the terminal end shaft 33 of the terminal end gear 32 of the feed chain 13 via the gear 50 and is transmitted from the engine 20 to the terminal end shaft 33 of the feed chain 13. Is configured as a constant speed rotation transmission path T.

The shift-rotation transmission path D is provided with a shift-side clutch 51 for turning on and off the drive from the shift-rotation transmission path D to the feed chain 13, and the constant-speed rotation transmission path T from the constant-speed rotation transmission path T to the feed chain 13. A constant speed clutch 52 is provided to turn on and off the drive.
The mode changeover switch 53 is used to switch from the variable speed rotation transmission path D, which is a normal working state, to the constant speed rotation transmission path T, which is the hand-held mode.
The mode changeover switch 53 of this embodiment is configured to be turned on and off by the operation lever 55 of the conveyance guide 54 of the feed chain 13.
The conveyance guide 54 is provided above the feed chain 13 between the start end side gear 30 of the feed chain 13 and the start end portion of the flange 16 provided above the feed chain 13, and the conveyance guide 54 and the feed chain 13 Grains potatoes are held and conveyed up to 杆 16.

The conveyance guide 54 is attached to the stay 57 by a shaft 58 so as to be rotatable between a culm guide position located above the feed chain 13 and a retreat position retracted from above, and a lateral shaft 58 outside the conveyance guide 54. The operation lever 55 is attached to the fixed state.
The stay 57 is attached to a support member 60 that supports the harvested cereal masher 11. The mode changeover switch 53 is provided in the movement path of the conveyance guide 54 or the base of the operation lever 55 so as to detect the rotation of the conveyance guide 54.
The mode switching switch 53 switches to the handling mode when the operation guide 55 rotates the conveyance guide 54 from the cereal guide position located above the feed chain 13 to the retracted position.
Therefore, the conveyance guide 54 is located above the feed chain 13 in the normal working state and holds and conveys the culm up to the culm 16 and prevents the hand-crop cereal from being placed above the feed chain 13. Thus, the hand-harvested cereal supply operation can be prevented, and the transport guide 54 is rotated from the cereal guide position to the retracted position.

When the mode changeover switch 53 switches to the constant speed rotation transmission path T, the rotation of the engine 20 is reduced.
Therefore, even if it is a manual handling operation for manually supplying a small amount of cereal, it is threshed by the handling cylinder 23 that rotates at a lower speed than the normal operation, thereby suppressing the occurrence of unhandled residue.
The mode changeover switch 53 has a push-type switch configuration that is switched on and off when pressed, and a normally-open switch configuration that energizes and switches to the handling mode when the transport guide 54 is rotated to the retracted position and pressed. To do.
The mode changeover switch 53 is configured as a normally closed switch that is energized to switch to the handling mode when the conveyance guide 54 is turned to the retracted position and separated.
The mode changeover switch 53 has a potentiometer type switch configuration that detects the rotation amount (resistance) of the shaft 58 that is the rotation amount of the conveyance guide 54, and the conveyance guide 54 detects the rotation to a predetermined retraction position. Switch to handle mode.

The conveyance guide 54 is provided with a lock device that prevents the rotation outside the predetermined range.
Therefore, it is possible to prevent the mode changeover switch 53 from malfunctioning due to the conveyance guide 54 being inadvertently rotated to the retracted position due to vibrations of the airframe or the like.
In addition, a predetermined time lag is provided between the operation of the mode changeover switch 53 and the switching to the handling mode, thereby preventing an erroneous operation of switching to the handling mode.
When the feed chain 13 is in the handling mode, a message to that effect is displayed on the monitor (not shown) of the control unit 6.
Therefore, the operator of the control unit 6 can recognize and grasp the work state of the hand-operated worker away from the control unit 6.
If the machine is moved forward while the feed chain 13 is in the handling mode, an alarm (not shown) notifies that fact.

Further, when the feed chain 13 is turned on or off in the hand-handling mode, the horn (not shown) of the control unit 6 may notify that the sound has been heard for about 1 second.
If it becomes the said hand-handling mode, the rotation speed of the engine 20 will be reduced to 2000 rpm.
An emergency stop switch (not shown) of the feed chain 13 is provided at a predetermined position of the machine body, and when the emergency stop switch is activated, the transmission side clutch 51 is engaged.
Therefore, the transmission path of the reaping device 4 that is stopped is input to the feed chain 13 and the movement of the feed chain 13 due to the inertia can be stopped quickly.

(Operation of the embodiment)
The machine is run, the cereals in the field are harvested by the reaping device 4, and the harvested cereals are supplied to the threshing device 3 for threshing.
In this case, generally, first, the four corners of the field are hand-cut to form a vacant area where the combine can enter, and the cereals in the field are run from the vacant field to harvest and thresh.
When the harvesting and threshing of the field is finished, the machine is stopped, the feed chain 13 and the threshing device 3 are driven, and the feed chain 13 is manually chopped and threshed.
A rotation transmission path from the engine 20 to the feed chain 13 includes a transmission rotation transmission path D that transmits a transmission synchronized rotation synchronized with a traveling speed transmitted to the reaping device 4, and a constant speed ratio to the threshing device 3. Since the feed chain 13 is configured to transmit from either the variable speed rotation transmission path D or the constant speed rotation transmission path T. Thus, it is possible to perform the work smoothly in both the normal mowing work form and the handling work form.

Therefore, in the normal cutting operation, the rotational power from the engine 20 is transmitted to the traveling mission device 22 via the hydraulic continuously variable transmission 21, and the traveling device 2 is driven by continuously variable transmission, and is synchronized with this traveling speed. The tuned rotation is transmitted to the reaping device 4 to perform the reaping operation. On the other hand, the threshing device 3 is transmitted with a constant speed rotation of a constant speed ratio from the engine 20 to perform the threshing operation.
Switching from the variable speed rotation transmission path D, which is the normal work state, to the constant speed rotation transmission path T, which is the hand-handling mode, is performed by the mode changeover switch 53. Therefore, when the mode changeover switch 53 is turned on, And the engine 20 is rotated at a constant speed, which is lower than that during normal work.
Therefore, even if it is a hand handling operation for manually supplying a small amount of cereal, it is threshed by the handling cylinder handling cylinder 23 that rotates at a constant speed, thereby suppressing the occurrence of unhandled residue.

Moreover, the cereal conveyance speed of the feed chain 13 is not provided with a special rotation transmission mechanism for the feed chain 13, and a constant speed rotation lower than the cereal conveyance speed during normal operation is transmitted. The safety of the work can be improved.
Moreover, since the threshing apparatus 3 and the feed chain 13 are driven by the low-speed constant speed rotation of the engine 20, energy saving is achieved.
The configuration of the two transmission paths of the variable speed rotation transmission path D and the constant speed rotation transmission path T to the feed chain 13 is arbitrary. For example, the start end side shaft 31 of the start end side gear 30 around which the feed chain 13 is wound. And the terminal side shaft 33 of the terminal side gear 32 are input shafts, respectively, and the threshing device 3 is rotated at a constant speed on either the starting side shaft 31 or the terminal side shaft 33 with the starting side shaft 31. A configuration in which a shift-synchronized rotation from the hydraulic continuously variable transmission 21 is input to any one of the end-side shafts 33 can be configured without providing a special rotation transmission mechanism to the feed chain 13, which is preferable. is there.

The start end side shaft 31 of the start end side gear 30 of the feed chain 13 is mounted on the front gear box 35, and a belt 39 is wound between the input pulley 37 and the intermediate pulley 38 of the input shaft 36 of the front side gear box 35, and the intermediate pulley Reference numeral 38 is attached to a speed-change rotating shaft 40 to which a speed-synchronized rotation synchronized with the traveling speed to the reaping device 4 is transmitted, and is transmitted from the engine 20 to the reaping device 4 via the hydraulic continuously variable transmission 21 and the traveling mission device 22. Since the variable speed rotation transmission path D for branching the path to be transmitted by the variable speed rotation shaft 40 and transmitting it to the feed chain 13 is configured, it is possible to input the drive from the reaping device 4 to the starting end side shaft 31 in the vicinity of the reaping device 4. In addition, the structure of the transmission / rotation transmission path D to the feed chain 13 can be simplified.
On the other hand, the terminal side shaft 33 of the terminal side gear 32 of the feed chain 13 is provided in the rear part of the threshing device 3, and the drive rotation from the engine 20 transmitted to the handling cylinder 23, the Karatsu 44, etc. of the threshing device 3 is sent to the feed chain 13. Since the transmission path to the terminal shaft 33 of the feed chain 13 is configured as a constant-speed rotation transmission path T, the handling mechanism is operated in conjunction with the feed chain 13 and the threshing device 3. The transmission path can be simply configured.

The shift-rotation transmission path D is provided with a shift-side clutch 51 for turning on and off the drive from the shift-rotation transmission path D to the feed chain 13, and the constant-speed rotation transmission path T from the constant-speed rotation transmission path T to the feed chain 13. Therefore, when the mode changeover switch 53 is turned on, the shift-side clutch 51 is turned off and the constant-speed side clutch 52 is turned on to perform the handling operation.
When the mode changeover switch 53 is turned off, the constant speed side clutch 52 is disengaged and the transmission side clutch 51 is engaged to perform normal mowing and threshing work.
Since the mode changeover switch 53 is configured to be turned on and off by the conveyance guide 54 at the start end of the feed chain 13, in a normal operation state, the conveyance guide 54 is used for holding and conveying the culm to the ridge 16. Since it is located above, the hand-harvested cereal can not be supplied and it is prevented from switching to the handling mode.

Since the mode changeover switch 53 is turned on to switch to the handling mode in conjunction with the handling start operation of the operation lever 55 that rotates the conveyance guide 54 from the grain guide position to the retracted position, the operability is improved. It is done.
When the mode changeover switch 53 is switched to the constant speed rotation transmission path T, the rotation of the engine 20 is reduced. Therefore, even in a manual operation for manually supplying a small amount of cereal, it is slower than a normal operation. It is threshed by the rotating handling cylinder 23 and suppresses unhandled generation.
In addition, since a predetermined time lag is provided between the on / off operation of the mode changeover switch 53 and the switching to the handling mode, an erroneous operation of switching to the handling mode is prevented.

When the feed chain 13 is in the handling mode, the fact is displayed on the monitor (not shown) of the control unit 6, so that the operator of the control unit 6 is in the working state of the handling operator away from the control unit 6. Can be recognized and grasped.
An emergency stop switch (not shown) of the feed chain 13 is provided at a predetermined position of the machine body. When the emergency stop switch is activated, the transmission-side clutch 51 is engaged, so that the reaction force from the transmission path of the reaping device 4 that is stopped Is input to the feed chain 13 and the movement due to the inertia of the feed chain 13 is quickly stopped.
In addition, each of the above-described embodiments is illustrated or described separately or mixed for easy understanding, but these can be combined in various ways, and the expression, configuration, action, etc. It is not limited, and there are of course cases where a synergistic effect is obtained.

  DESCRIPTION OF SYMBOLS 1 ... Airframe frame, 2 ... Traveling device, 3 ... Threshing device, 4 ... Mowing device, 5 ... Glen tank, 6 ... Steering unit, 8 ... Weeding device, 9 ... Pulling device, 10 ... Cutting blade, 11 ... Grain basket Conveying device, 13 ... feed chain, 16 ... 挾 扼 杆, 20 ... engine, 21 ... hydraulic continuously variable transmission, 22 ... traveling mission device, 23 ... cylinder, 30 ... start end side gear, 31 ... start end side shaft, 32 ... Terminal side gear, 33 ... Terminal side shaft, 35 ... Front side gear box, 36 ... Input shaft, 37 ... Input pulley, 38 ... Intermediate pulley, 39 ... Belt, 40 ... Variable rotating shaft, 44 ... Tangyo, 45 ... One No. spiral, 46 ... No. 2 spiral, 47 ... Oscillating sorting shelf, 48 ... Suction dust exhaust fan, 51 ... Variable speed side clutch, 52 ... Constant speed side clutch, 53 ... Mode change switch, 54 ... Conveyance guide, 58 ... Shaft 59 ... Chain guide rails, 60 ... Support members.

Claims (1)

Cutting device of the aircraft forward (4) is provided a feed chain (13) for feeding and conveying the threshing chamber threshing apparatus culms that clippings (3), said cutting device (4) is a hydraulic stepless transmission (21) The threshing device (3) is configured to transmit the driving rotation of the engine (20) at a constant gear ratio, and the feed chain (13) is synchronized with the traveling speed of the traveling device (2). ) Is a transmission / revolution transmission path (D) that transmits transmission synchronous rotation transmitted to the reaping device (4), and a constant-speed rotation transmission path (T) that is transmitted to the threshing apparatus (3) at a constant transmission ratio. ), And the variable speed rotation transmission path (D) and the constant speed rotation transmission path (T) are switched by a mode changeover switch (53). The transmission path (D) has a variable speed rotation transmission. A transmission side clutch (51) for turning on and off the drive from the path (D) to the feed chain (13) is provided, and the constant speed rotation transmission path (T) is connected to the feed chain (13) from the constant speed rotation transmission path (T). ) Is provided with a constant speed side clutch (52) for switching on and off the drive to the clutch, and either the speed change side clutch (51) or the constant speed side clutch (52) is connected by the operation of the mode switch (53). The combine is configured such that when the constant speed side clutch (52) is engaged and an emergency stop switch provided at a predetermined position of the machine body is activated, the transmission side clutch (51) is engaged.

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