JPH0521628U - Combine - Google Patents

Abstract

(57) [Summary] [Purpose] The work switch 11 is used to perform mowing and threshing work.
When the cutting and threshing clutches 6 and 7 are turned on, the driving of the cutting unit 3 by the cutting clutch 6 and the driving of the threshing unit 4 by the threshing clutch 7 are performed with a certain time delay, and the engine is The driving of the mowing unit 3 and the threshing unit 4 is smoothly started without applying a large load to the side. [Structure] A drive control device 10 is provided for turning on one side of the reaping clutch 6 and the threshing clutch 7 with a certain time delay with respect to the other side when the work switch 11 is turned on.
Under the control of the drive control device 100, for example, the threshing clutch 7 is turned on and then the reaping clutch 6 is turned on with a certain time delay to reduce the engine load due to the simultaneous on operation.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a combine, and more particularly to a combine equipped with a mowing clutch and a threshing clutch, and transmitting power to the mowing section and the threshing section through the clutch to perform work.

[0002]

[Prior Art]

 Conventionally, a combine is provided with a mowing section and a threshing section, as described in, for example, Japanese Utility Model Publication No. 51-159341, and a mowing clutch for interrupting a drive input to the mowing section and the threshing section. There is a threshing clutch that connects and disconnects the drive input to the machine, and the work switch is used to perform the mowing threshing work.However, when performing the mowing threshing work by turning on the work switch, the mowing threshing work is performed. The clutch and the threshing clutch are turned on at the same time, and the mowing section and the threshing section are driven simultaneously at the same time as the cutting and the threshing clutch are turned on.

[0003]

[Problems to be solved by the device]

 However, in the above combine, when the work switch is turned on, both the mowing clutch and the threshing clutch are turned on, and the mowing section and the threshing section are started to drive at the same time. There was a problem that a large load was placed on the side. Particularly, on the threshing section side, since the weight of the handling cylinder installed inside the threshing section is large and the inertial mass thereof is also large, when the threshing section and the cutting section are simultaneously driven, the engine This caused a large load to be generated, which made it impossible to smoothly start driving the mowing section and the threshing section.

The present invention has been made in view of the above problems, and an object thereof is to reduce the load acting on the engine side at the start of work and to smoothly start the driving of the mowing section and the threshing section. It is to provide a combine that can.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention relates to a mowing unit 3, a threshing unit 4, and a mowing clutch 6 for disconnecting drive input to the mowing unit 3, and a threshing clutch for disconnecting drive input to the threshing unit 4. 7 and a work switch 11 for instructing the start of work in the reaping section 3 and the threshing section 4, when the work switch 11 is turned on, one of the reaping clutch 6 and the threshing clutch 7 is moved to the other side. On the other hand, it is characterized in that the drive control device 100 which is turned on after a fixed time delay is provided.

[0006]

[Action]

 In the above combine, when the work switch 11 is turned on to perform the mowing threshing work, one side of the mowing and threshing clutches 6 and 7 is turned on with a fixed time delay with respect to the other side. The drive of the mowing unit 3 by the mowing clutch 6 and the start of the driving of the threshing unit 4 by the threshing clutch 7 are performed with a certain time delay, so that a large load is avoided on the engine side at the start of work. Therefore, the load on the engine can be reduced to that extent, and the drive of the mowing unit 3 and the threshing unit 4 can be smoothly started.

[0007]

【Example】

 FIG. 11 shows the overall structure of the combine. In FIG. 11, reference numeral 1 denotes a traveling machine body provided with crawler type traveling devices 2 on both sides of a lower part thereof, and a cutting blade 3 1 is provided on the front side of the traveling machine body 1. The reaping section 3 provided with the rice culm-raising chain 32 and the like is arranged, and the handling body 42 is provided on the upper side of the traveling machine body 1, and the feed chain 41 is attached to the side of the handling body 42. A threshing unit 4 is mounted, and a vertical conveying device 5 is provided between the mowing unit 3 and the threshing unit 4, and conveys the mowing culm by the mowing unit 3 to the feed chain 41 of the threshing unit 4. I am dressed up.

Further, as is clear from the power transmission path diagram shown in FIG. 1, the combine is equipped with the engine E mounted on the traveling machine body 1 and the drive wheels 2 a, 2 a of each traveling device 2. And a transmission TM for transmitting power to the engine E, the first and second pulleys P1 and P2 are provided on the output shaft S1 of the engine E, and the first pulley P1 and a third pulley provided on the side of the mission TM are provided. The rotation power from the engine E is transmitted to the drive wheels 2a, 2a side by winding the first belt B1 between the third pulley P3 and the third pulley P3, and the fourth pulley is provided at an intermediate portion of the mission TM. A power output shaft S2 provided with P4 is provided so that the rotational power is transmitted from the fourth pulley P4 to the cutting blade 31 of the mowing section 3 and the grain culm raising chain 32 via the second belt B2. Eggplant one On the other hand, an electromagnetic reaping clutch 6 is provided on the power take-off shaft S2, and the power transmission from the mission TM to the reaper 3 side is interrupted by the on / off operation of the reaper clutch 6. ..

Further, an electromagnetic threshing clutch 7 is provided between the engine E and the threshing section 4 to interrupt the drive input to the threshing section 4, and the on / off operation of the threshing clutch 7 is performed. With this, the drive input to the feed chain 41 and the handling drum 42 of the threshing unit 4 is interrupted, and at the same time, the Karato and No. 1 and 2 arranged on the lower side of the threshing unit 42 in the threshing unit 4 are used. The drive system for the threshing section side working devices such as the number conveyor and the rocking / sorting device is provided with an electromagnetic work clutch 10 for interrupting the drive input to these devices.

Specifically, the second pulley P2 provided on the engine E side, and the fifth pulley P5 mounted on the shaft end side of the power transmission shaft S3 to the threshing unit 4 and the threshing unit side working device. The third belt B3 is looped between them, and a sixth pulley P6 is provided at the shaft end of the power transmission shaft S3 opposite to the fifth pulley P5. The rotation power is transmitted to the threshing section side working devices such as the Kara Minoh, the No. 1 and No. 2 conveyors and the swing sorting device via the belt B4, while the sixth pulley is provided on the power transmission shaft S3. The work clutch 10 is interposed on the P6 side, and the power transmission to the threshing section side work device such as the Kara Minato or No. 1 and No. 2 conveyors is interrupted by the on / off operation of the work clutch 10. Further, a first gear G1 is provided at an intermediate position between the threshing clutch 7 and the fifth pulley P5 on the power transmission shaft S3, and meshes with the first gear G1 near the power transmission shaft S3. While supporting the intermediate shaft S4 having the second gear G2 and mounting the third bevel gear G3 on the shaft end side of the intermediate shaft S4, a fourth gear meshing with the third bevel gear G3 is provided near the intermediate S4. A first continuously variable transmission that supports a power transmission shaft S5 having a bevel gear G4, and is capable of continuously shifting at the shaft end of the power transmission shaft S5 opposite to the fourth bevel gear G4 by operating the electric cylinder 8a. A device is attached, and the threshing clutch 7 is interposed between the continuously variable transmission 8 and the split pulley on the power transmission shaft S5. Further, two seventh and eighth pulleys P7 and P8 are provided on the handling barrel shaft S6 of the handling barrel 42 in the threshing unit 4, and the seventh pulley P7 and the split pulley of the continuously variable transmission 8 are provided. The fifth belt B5 is wound between them, and the power transmission shaft S7 is supported in the vicinity of the rotation shaft S6. The possible second continuously variable transmission 9 is attached, and the sixth belt B6 is wound between the second continuously variable transmission 9 and the eighth pulley P8, while the second belt of the power transmission shaft S7 is provided. A fifth bevel gear G5 is provided at the shaft end on the side opposite to the split pulley of the continuously variable transmission 9. The fifth bevel gear G5 is meshed with the sixth hebel gear G6 provided on the drive shaft S8 of the feed chain 41. ing. In FIG. 2, 43 is a processing cylinder arranged near the handling cylinder 42, and 44 is a straw chain arranged rearward of the feed chain 41 in the grain culm transport direction.

Further, in the continuously variable transmission 8, as is clear from FIG. 3, a fixed barrel 82 provided with a first pulley member 81 extending outward in the radial direction, and the first pulley member 81. And a support cylinder 84 having a second pulley member 83 facing each other and movably inserted in the fixed cylinder 82. Inside the support cylinder 84, a piston 8b extending from the electric cylinder 8a is mounted via a bearing 85. And the power transmission shaft S5 is fixed to the fixed cylinder 82. Then, the piston 8b is moved back and forth in accordance with the operation of the electric cylinder 8a to adjust the distance between the first pulley member 83 and the second pulley member 81, so that the respective pulley members 81, The diameter of the fifth belt B5 wound around 83 is changed to increase or decrease the rotational power from the fifth belt B5 to the handling cylinder 42 side. The second continuously variable transmission 9 has the same structure.

In the above combine, however, as shown in FIG. 2, the harvesting clutch 6, the threshing clutch 7 and the threshing part side working clutch 10 are respectively provided on the output side of a drive control device 100 having a microcomputer incorporated therein. And a work switch 11 for instructing the start of work in the mowing section 3 and the threshing section 4 on the input side of the drive control device 100, and when the work switch 11 is turned on, the drive control is performed. The harvesting clutch 6, the threshing clutch 7, and the threshing section side work clutch 10 are turned on via the control device 100 with a certain time delay. Then, the start of driving the reaping section 3 by turning on the reaping clutch 6 and the start of driving the feed chain 41 and the handling cylinder 42 in the threshing section 4 by turning on the threshing clutch 7 and the threshing. A large load is applied to the engine E side by delaying the start of driving of the threshing section side working devices such as the Kara Minoh, the No. 1 and No. 2 conveyors and the rocking sorting device by the ON operation of the section side working clutch 10 with a certain time delay. The driving can be smoothly started in the mowing section 3 and the threshing section 4 respectively without giving them.

Further, in the embodiment of FIGS. 1 and 2, as is clear from the main flowchart of FIG. 4 described later, the time delay control of the harvesting clutch 6, the threshing clutch 7, and the threshing section side work clutch 10 is performed. Not only the rotation speed control of the handling barrel 42 corresponding to the rotation speed on the cutting unit 3 side, and the rotation speed control of the feed chain 41 depending on the water content of the grain culms supplied to the handling barrel 42. To be able to.

That is, as shown in FIG. 1, a cutting rotation sensor 12 for detecting the rotation speed of the cutting unit 3 is provided on the power take-off shaft S2 extending from the mission TM, and the threshing clutch 7 is interposed. A handling cylinder rotation sensor 13 for detecting the number of rotations on the handling barrel 42 side is provided on the power transmission shaft S5. Further, a feed chain front switch 14 for detecting grain culm supply is provided on the grain culm supply side of the feed chain 41, and an straw chain switch 15 is provided on the grain culm discharge side of the discharge straw chain 44. A vertical transport grain culm detection switch 16 is provided in the grain culm transport path of the vertical transport device 5, while the grain culm supply side of the feed chain 41 is cut by the reaping unit 3 and supplied into the threshing unit 4. A moisture sensor 17 is provided to detect the moisture of the grain culm.

Then, as shown in FIG. 2, at the input port of the drive control device 100, the mowing rotation sensor 12, the handle rotation sensor 13, the work switch 11, the feed chain pre-switch 14, the straw chain switch 15 are connected. , The vertical transfer switch 16 and the moisture sensor 17 are connected respectively. Further, the output port of the drive control device 100 connects the harvesting clutch 6, the threshing clutch 7 and the threshing part work clutch 10 respectively, and also an electric cylinder provided in the first continuously variable transmission 8. The motor M 1 of 8a and the buzzer Z1 are connected via the first relay box R1, and the motor M2 of the electric cylinder 9a provided in the second continuously variable transmission 9 and the buzzer Z2 are connected to the second relay box R2. To connect via.

Next, the operation of the above configuration will be described. As shown in FIG. 4, the control by the drive control device 100 includes clutch control of the reaping clutch 6, the threshing clutch 7 and the threshing section side work clutch 10 and rotation of the handling cylinder 42 by starting a start. The number control and the rotation number control of the feed chain 41 are sequentially performed according to the subroutines shown in FIGS. 5 to 7, 9 and 10.

When the clutch control is performed, the control is performed by the flow of the subroutine shown in FIGS. 5 to 7. First, as shown in FIG. It is determined whether 11 is on-operation (step ST1), and in the case of No, that is, when the work switch 11 is off and the mowing threshing operation is not performed, in steps ST2-ST4, It is determined whether or not the reaping clutch 6, the threshing clutch 7 and the threshing section side work clutch 10 are in the on-operation, respectively, and if the result of the determination in each of these steps ST2 to ST4 is yes, step In ST5 to ST7, although the mowing threshing work is not performed by the off operation of the work switch 11, the clutches 6, 7, 10, The clutches 6, 7 and 10 are turned off, assuming that the clutch is turned on. On the other hand, if the determination results in steps ST2 to ST4 are all negative, the process proceeds to step ST1. Will be returned.

When the result of the determination in step ST1 is YES, it is determined whether or not the rotation speed of the engine E is a certain value or more (step ST8), and if the result of the determination is YES. In steps ST9 to ST11, it is determined whether the reaping clutch 6, the threshing clutch 7, and the threshing section side work clutch 10 are in the ON operation, and the determination results in each of these steps ST9 to ST11 are all determined. In the case of no, the timer is started as shown in FIG. 6 (step ST12), then, in step ST13, the threshing clutch 7 is turned on to start the driving of the handling cylinder 42 side. In ST14, it is determined whether the time t counted by the timer has exceeded a predetermined time T1 set in advance. Only when the result is yes, in step ST15, the threshing section side work clutch 10 is turned on to start the driving of the threshing section side work apparatus such as the Karato and the No. 1 and No. 2 conveyors. In step ST16, it is judged whether or not the time t counted by the timer has exceeded a predetermined time T2 set in advance larger than the set time in step ST14. Only when this judgment result is YES, In step ST17, the reaping clutch 6 is turned on to start driving the reaper 3 side, and then the timer is reset in step ST18, and then the process returns to step ST1. That is, the ON operations of the threshing clutch 7, the threshing part side work clutch 10 and the reaping clutch 6 are performed with a certain time difference, that is, when the threshing clutch 7 starts driving on the handling cylinder 42 side. The driving of the Karato or the like by the threshing section side working clutch 10 and the start of driving the cutting section 3 by the cutting clutch 6 are respectively delayed by a certain time. Therefore, these clutches 6, 7, The rotational load on the engine E side is reduced as compared with the case where 10 are simultaneously turned on.

Further, when the determination results in steps ST9 to ST11 shown in FIG. 5 are all YES, that is, all of the harvesting clutch 6, the threshing clutch 7, and the threshing section side working clutch 10 are turned on. If so, in steps ST19 to ST21, it is determined whether the vertical conveyor grain culm detection switch 16, the feed chain front switch 14 and the straw chain switch 15 are off, respectively. When all the determination results are NO, that is, when the grain culm supply to the threshing unit 4 side is continued, the timer is reset in step ST22 and the control from step ST1 is repeated.

Further, when the result of the determination in each of the steps ST19 to ST21 is YES, that is, the vertical conveyor grain stem detecting switch 16, the feed chain front switch 14 and the straw chain switch 15 are turned off. When the grain culm supply to the threshing unit 4 is stopped, the timer is started (step ST23) as shown in FIG. 7, and then the timer is counted in step ST24. It is judged whether or not the time t has passed a predetermined time T3, which is considerably longer than the preset predetermined times T1 and T2. Only when the result of the judgment is YES, the timer is reset at step ST25, and In the subsequent steps ST26 to ST28, the harvesting clutch 6, the threshing clutch 7, and the threshing section side work clutch. 10 and 10 are turned off, driving of the mowing unit 3 and the threshing unit 4 is stopped, and the process returns to step ST1. In the above description, first, the drive of the threshing clutch 7 on the side of the handling cylinder 42 is started, and then the operation of the threshing section side operation clutch 10 to start the driving of the currants and the like, and finally the harvesting clutch 6 The driving of the cutting unit 3 side is started by the above method. However, in the present invention, the driving of the cutting clutch 6 and the clutches 7 and 10 can be started in the reverse order.

Next, a case will be described in which the rotation speed of the handling cylinder 42 is controlled in accordance with the rotation speed of the mowing unit 3. First, FIG. 8 shows a control graph in which the horizontal axis represents the mowing rotation speed on the side of the mowing unit 3 and the horizontal axis represents the target rotation speed of the handling cylinder 42. As is clear from this graph, The target rotation speed of the handling cylinder 42 is set in advance so as to increase with a quadratic curve with respect to the cutting speed so that threshing can be appropriately performed with respect to the rotation speed on the cutting unit 3 side.

Then, the rotation speed control of the handling cylinder 42 corresponding to the rotation speed on the side of the mowing unit 3 is performed based on the flowchart shown in FIG. That is, with the start of the start, in step ST30, the number of rotations on the cutting unit 3 side by the cutting rotation sensor 12 is read, and then in Step ST31, the number of rotations corresponding to the cutting unit 3 side is read. The target rotation speed N of the handling cylinder 42 is read, and the actual rotation speed No of the handling cylinder 42 read by the handling cylinder rotation sensor 13 is read in step ST32. Thereafter, in step ST33, it is determined whether the actual rotation speed No of the handling cylinder 42 is larger than the target rotation speed N, and if the determination result is YES, that is, the handling cylinder 42 is When the rotation speed is higher than the target rotation speed N, in step ST34, the motor M1 of the first electric cylinder 8a provided on the side of the first continuously variable transmission 8 decelerates with an alarm from the buzzer Z1. The handling cylinder 42 is controlled so as to approach the target rotation speed N, and when the result of the determination in step ST33 is no, in step ST35, the handling cylinder 42 is controlled. Is determined to be smaller than the target rotation speed N, and if the result of the determination is YES, that is, the handling cylinder 42 is rotating at a low speed with respect to the target rotation speed N. When and, in step ST36, the motor M1 of the first electric Siri Sunda 8a is the is accelerated controlled accompanied by warning by buzzer Z1, the thresher 42 is controlled so as to come close to the target rotational speed N. After the control in steps ST34 and ST36, the control from step ST30 is repeated.

Further, a case will be described in which the rotation speed of the feed chain 41 is controlled based on the water content of the grain culm supplied to the threshing unit 4 side. The rotation speed control of the feed chain 41 is performed based on the subroutine shown in FIG. That is, with the start of the start, in step ST40, the moisture sensor 17 detects and reads the moisture Wo of the grain culm to be supplied to the threshing unit 4, and then in step ST41, the moisture Wo is previously measured. It is determined whether the water content is higher than the set water content W, and if the result of the determination is YES, that is, if the water content Wo contained in the grain culm is more than the set water content W and the water content is moist, the step In ST42, the motor M2 of the second electric cylinder 9a provided on the side of the second continuously variable transmission 9 is speed-up controlled while being accompanied by an alarm by the buzzer Z2, so that the feeding speed of the grain culms by the feed chain 41 is increased. It is controlled at a high speed, and when the result of the determination in step ST41 is NO, in step ST43, the water content Wo is the preset water content. If the result is YES, that is, if the water content Wo contained in the grain culm is less than the set water content W and is smaller than the set water content W, then in step ST44, The motor M2 of the second electric cylinder 9a is decelerated while being alarmed by the buzzer Z2, and the feed speed of the feed chain 41 is controlled to be low. After performing the control in steps ST42 and ST44, the control from step ST40 is repeated.

In the combine as described above, when the reaper 3 is lifted to a certain height or higher, the reaper clutch 6 is turned off to stop the drive of the reaper 3 and at the same time the threshing clutch 3 is stopped. 7 and the threshing part side work clutch 10 are turned off to automatically stop the feed chain 41 and the straw chain 44. In this case, the feed chain 41 and the straw chain 44 are automatically stopped when the combine is turned at the end of the field or the like while the cutting unit 3 is raised to a certain height. It is possible to stop the transportation of the grain culms by these chains 41 and 44, to prevent the grain culms from being discharged to the field, and particularly, in the case of a combine equipped with a binding machine, this binding Since the transportation of grain culms to the machine side is stopped and the bundling is stopped, it is possible to prevent the bundled grain culms from being discharged during the turning, being trampled on by the aircraft or obstructing the turning, and the straw is wound. It is possible to avoid troubles caused by it.

[0025]

[Effect of the device]

 As described above, in the combine of the present invention, when the work switch 11 is turned on, the drive control device 100 that turns on one side of the harvesting clutch 6 and the threshing clutch 7 with a certain time delay with respect to the other side is provided. When the cutting and threshing clutches 6 and 7 are turned on while the work switch 11 is turned on to perform the cutting and threshing work, the cutting and threshing clutches 6 and 7 are operated via the drive control device 100. Thus, the ON operation is performed with a certain time delay, that is, the drive of the mowing unit 3 by the mowing clutch 6 and the drive of the threshing unit 4 by the threshing clutch 7 can be performed with a certain time delay. Therefore, it is possible to avoid a large load on the engine due to the driving of the mowing unit 3 and the threshing unit 4 at the same time, and to reduce the load accordingly, and to start the driving of the mowing unit 3 and the threshing unit 4 by the engine. It can be done smoothly without trouble such as a stop.

[Brief description of drawings]

FIG. 1 is a power transmission path diagram of a combine according to the present invention.

FIG. 2 is a control block diagram of the combine.

FIG. 3 is a cross-sectional view of a split pulley provided with an electric cylinder used for the power transmission path.

FIG. 4 is a flowchart of a main routine.

FIG. 5 is a flowchart showing a first half of a subroutine for performing clutch control.

FIG. 6 is a flowchart showing a latter half part of the flowchart of FIG.

FIG. 7 is a flowchart showing another part of the latter half that is continuous with the flowchart of FIG.

FIG. 8 is a control graph for setting a target rotation speed on the handle barrel side corresponding to a mowing rotation speed.

FIG. 9 is a flow chart showing a subroutine for controlling the handling cylinder rotation speed.

FIG. 10 is a flowchart showing a subroutine for controlling the rotational speed of the feed chain.

FIG. 11 is a perspective view showing the overall structure of the combine.

[Explanation of symbols]

 3 Mowing part 4 Threshing part 6 Mowing clutch 7 Threshing clutch 100 Drive control device 11 Work switch

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Kozo Kitayama 1-32 Chayamachi, Kita-ku, Osaka-shi, Osaka Yanma Agricultural Machinery Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A mowing unit 3, a threshing unit 4, and a mowing clutch 6 for connecting and disconnecting a drive input to the mowing unit 3, and the threshing unit 4.
Threshing clutch 7 for connecting and disconnecting the drive input to the work switch 1 for instructing the start of work in the mowing section 3 and the threshing section 4.
And a working switch 1
The combine control is provided with a drive control device 100 for turning on one of the harvesting clutch 6 and the threshing clutch 7 with a certain time delay with respect to the other when the ON operation of 1 is performed.