JPH08252022A - Tuning control mechanism of reaping part in combined harvester - Google Patents

Abstract

PURPOSE: To provide a tuning control mechanism of a reaping part in a combined harvester constituted so as to drive a reaping part through one way clutch from hydrostatic transmission mechanism side when the traveling speed is a specified speed or above, capable of favorably ensuring raising performance of grain culms and improved in reaping workability and carrying property. CONSTITUTION: This tuning control mechanism is constituted by interlocking and connecting an engine 4 to a hydrostatic transmission mechanism 6-1 for driving a traveling part 5 and interlocking and connecting the hydrostatic transmission mechanism 6-1 through one-way clutch 13 to a reaping part 2 and driving the reaping part 2 through the clutch 13 when the traveling rate of a machine body is kept in stopped state or at a specified speed or below or driving the reaping part 2 through the one-way clutch 13 from the hydrostatic transmission mechanism 6-1 side when the traveling speed is kept at a specified speed or above.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synchronization control mechanism for a cutting section in a combine for cutting and threshing culms.

[0002]

2. Description of the Related Art Conventionally, in a combine, a feed chain for feeding and supplying grain culm is driven by a threshing section side, and a reaping section is driven by a hydraulic speed change mechanism such as an HST transmission for driving a traveling section. Exists.

[0003]

However, in the conventional example described above, when the grain stalks to be planted in the field are in the lodging state, the cutting unit is rotated in order to make the traveling speed of the machine extremely low. Was too slow to raise and the cutting performance of the cutting blade was deteriorated.

Further, since the feed chain for supplying grain culms to the threshing section always rotates at a constant speed, the feeding means for cutting and transporting grain culms and the feed chain are not in synchronism. There was a disturbance.

[0005]

Therefore, in the present invention, the engine and the hydraulic speed change mechanism for driving the traveling section are interlockedly connected, and the hydraulic speed change mechanism and the cutting section are interlockedly connected via a one-way clutch. On the other hand, the engine and the mowing unit are interlocked via a clutch, and when the traveling speed of the airframe is stopped or below a certain speed, the mowing unit is configured to be driven through the clutch and the traveling When the speed is equal to or higher than a predetermined speed, the harvesting section is driven from the hydraulic transmission mechanism side via a one-way clutch, so that a synchronization control mechanism for the harvesting section in the combine is provided.

The present invention also has the following features.

The engine and the hydraulic speed change mechanism for driving the traveling section are interlockedly connected, and the hydraulic speed change mechanism, the mowing section and the feed chain are interlockingly connected via a one-way clutch, while the engine, the mowing section and the feed chain are connected. When the traveling speed of the aircraft is stopped or below a certain speed, the chain and the chain are interlockingly connected to each other, and the cutting unit and the feed chain are configured to be driven through the clutch, and the traveling speed is When the speed is higher than a certain speed, the cutting unit and the feed chain should be configured to be driven from the hydraulic transmission mechanism side via a one-way clutch.

The clutch is a one-way clutch.

A threshing section is provided between the engine and the clutch.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described with reference to the drawings. In FIG. 1, reference numeral 1 is a combine, which is provided with a mowing section 2 at the front and a rear section of the mowing section 2. The threshing section 3 is disposed in the.

Reference numeral 4 denotes an engine mounted on the fuselage 1 of the combine 1. The power of the engine 4 is transmitted to a hydraulic speed change mechanism 6-1 for operating the traveling portion 5 by hydraulic pressure on one side, and to the other side. It is transmitted to the threshing unit 3. 6 is a hydraulic transmission mechanism 6-1
HST translation case provided in.

Reference numeral 7 is a feed chain provided in the threshing section 3 and is continuously provided with a deceleration case 8. Reference numerals 9-1 and 9-2 are output pulleys of the engine 4, 10 is an input pulley of the hydraulic transmission mechanism 6-1, and 11 is an input shaft. Reference numeral 12 is an output shaft of the hydraulic speed change mechanism 6-1, and a one-way clutch 13 is arranged in the middle portion.

A drive shaft 14 has a drive pulley 15 fixed thereto. Reference numeral 16 denotes a first shaft which is interlockingly connected with the drive shaft 14 and to which a driven pulley 17 is fixed.

Reference numeral 18 is a drive gear for driving the cutting unit 2, 19 is a transmission gear, and 20 is a cutting clutch provided on the first shaft 16.

Reference numeral 21 is a drive pulley fixedly mounted on the first shaft 16, and the drive pulley 21 is interlocked with a driven pulley 23 on the second shaft 22. Reference numeral 24 is a feed chain clutch for performing an on / off operation of the feed chain 7.

Reference numeral 25 is a drive gear fixed to the second shaft 22, and the drive gear 25 is meshed with a driven gear 27 fixed to the third shaft 26. Reference numeral 28 denotes a drive gear that is fixed on the third shaft 26, and meshes with a driven gear 30 on the feed chain drive shaft 29. Reference numeral 31 is a feed chain sprocket fixed to the feed chain drive shaft 29.

Further, 32 is an intermediate shaft, and 33 is a driven pulley fixed to the intermediate shaft 32, which is interlocked with the output pulley 9-2. 34 is a drive pulley fixed to the intermediate shaft 32, and 35 is a threshing part drive shaft, which is linked to the intermediate shaft 32 while fixing the driven pulley 36.

Further, 39 is a transmission pulley fixed to the threshing section drive shaft 35, and is linked to a driven pulley 40 fixed on the second shaft 22. Further, 41 is a one-way clutch provided on the second shaft 22, and the one-way clutch 41 is the threshing unit 3
Only drive from the side is possible.

The embodiment of the present invention is configured as described above, and when the grain stalks to be planted in the field are normal, the engine 4 is used.
By the rotation of, one of the powers is transmitted to the traveling unit 5 and the first shaft 16 via the hydraulic speed change mechanism 6-1.

Then, the cutting unit 2 is driven from the first shaft 16 via the first transmission path A, and the feed chain 7 is driven via the second transmission path B.

The power of the engine 4 is the drive shaft of the threshing section.
The threshing unit 3 side is driven via 35.

Therefore, in the above case, the mowing and threshing work can be performed with the machine running at low speed and high side, and the rotations of the threshing unit 3 and the feed chain 7 are also proportional to the machine running speed.

Further, when the grain culms to be planted in the field are in the laid state, it is necessary to work with the traveling speed of the machine at an extremely low speed. In this case, the power of the threshing part drive shaft 35 is one-way. It is transmitted to the second shaft 22 via the clutch 41. Then, the feed chain 7 is driven in a high speed rotation state via the third transmission path C, and the reaper 2 is driven at high speed via the fourth transmission path D passing from the second shaft 22 to the first shaft 16. can do. In this case, the one-way clutch 13 provided on the drive shaft 14 causes the hydraulic speed change mechanism 6-
Power is not transmitted to the 1 side.

Therefore, the relationship between the traveling speed of the machine body and the speeds of the feed chain and the mowing section is as shown in the graph of FIG.

As described above, according to the above-described embodiment, when the traveling speed of the machine is in the stopped state or at a constant speed, the mowing section 2 and the feed chain 7 are transmitted from the threshing section 3 side to the third and fourth transmissions. When the vehicle travels at a certain speed or higher through the routes C and D, the hydraulic speed change mechanism 6-1 that drives the traveling unit 5 passes through the first and second transmission routes A and B. Since the cutting unit 2 and the feed chain 7 are driven and rotated in synchronization with the traveling speed, the machine is operated at an extremely low speed when the grain stalks to be planted in the field are in the lodging state. Even in such a case, the raising performance of the grain culm and the cutting performance of the cutting blade are improved. Further, since the speeds of the mowing unit 2 and the feed chain 7 are synchronized with each other, the culm is not disturbed at the stage of conveying the cut grain culm. Therefore, the mowing and threshing work can always be efficiently performed.

Further, FIG. 3 shows another embodiment of the feed chain drive apparatus, in which 50 is an HST transmission case which is a hydraulic speed change mechanism, and an output pulley 51.
And the reaping input pulley 52 are interlockingly connected to each other so that the reaping input shaft 53 is rotatable, and a claw clutch type reaping clutch 54 is provided on the reaping input shaft 53.

55 is a gear mechanism for transmitting power to the reaper 56, 57 is a feed chain transmission shaft, and a drive pulley 58 fixed on the reaping input shaft 53 and a driven pulley 59 fixed on the feed chain transmission shaft 57. And are interlockingly connected via a belt clutch type feed chain clutch 60. Reference numeral 61 is a feed chain drive shaft, and a reduction case 62 is interposed between the drive chain drive shaft 57 and the feed chain drive shaft 57. 63 is a feed chain, 64 is a sprocket, and 65 is a threshing section.

Reference numeral 66 denotes a reaping clutch operating lever for opening and closing the reaping clutch 54. The reaping clutch operating lever 66 includes an operation wire 67 for connecting the reaping clutch 54 and an operation for opening and closing the feed chain clutch 60. The wire 68 is connected.

Therefore, according to the above-described embodiment, the feed chain 63 is driven by the reaping input shaft 53, and the feed chain 63 is interlocked with the reaping clutch operating lever 66 without always operating.

Conventionally, since the feed chain is driven from the threshing section, the feed chain always has a constant conveying speed, so that culm spills or the culm posture collapses at the entrance of the threshing section. According to the above embodiment, the culm is not pulled at the inheritance portion of the threshing portion.

Further, when the reaper stops, the feed chain also stops at the same time, so there is no culm spillage. In addition, the operating force of the reaping clutch operating lever is light, and the posture of the culm is always constant.

4 to 6 show a belt tension structure in which the driving side and the driven side can be converted, and FIG. 4 shows the belt tension structure in the unloaded state. Is a transmission pulley on one side, and an endless belt 72 is wound around the transmission pulley 71 on the other side. Reference numeral 73 is a tension pulley provided on one transmission pulley 70 side, and 74 is a tension spring.

Reference numeral 75 is a tension pulley provided on the other transmission pulley 71 side, and 76 is a tension spring.

When the other transmission pulley 71 is driven by the power of one transmission pulley 70, the endless belt 72 is stretched by the tension pulley 73 on the one transmission pulley 70 side, as shown in FIG.

On the contrary, when driving the one transmission pulley 70 by the power of the other transmission pulley 71, the endless belt 72 is stretched by the tension pulley 75 on the other transmission pulley 71 side as shown in FIG. .

Therefore, even when the power is transmitted not only from one direction but also from both directions, the power is surely transmitted.

Moreover, since the winding angle of the endless belt is increased, the transmission horsepower is increased.

7 and 8 show a conventional belt tension structure, in which an endless belt 82 is wound between one transmission pulley 80 and the other transmission pulley 81. The endless pulley 80 is provided with one tension pulley 83. 84 is a tension spring.

Therefore, in the above-mentioned conventional type, when one transmission pulley 80 is driven by the other transmission pulley 81, power is transmitted in a good state, but conversely to the above, one transmission pulley 80 is used. When the other transmission pulley 81 is driven, the endless belt 82 is loosened as shown in FIG. 8, and the power is not reliably transmitted.

[0040]

According to the present invention as set forth in claim 1, when the traveling speed of the airframe is in a stopped state or below a certain speed, the reaper is driven via the clutch without using the hydraulic speed change mechanism. When the traveling speed is equal to or higher than a certain speed, the hydraulic shifting mechanism that drives the traveling portion drives the reaper through the one-way clutch to rotate the reaper in synchronization with the traveling speed. When the grain stalks to be planted in the lodge are in the lodging state, even if the machine is operated in an ultra-low speed traveling state, the harvesting performance of the grain stalks is achieved without synchronizing the cutting unit with the ultra-low speed traveling speed. Also, the cutting performance of the cutting blade can be ensured satisfactorily, and the cutting work of the grain culms can be performed efficiently.

According to the second aspect of the present invention, since the speeds of the mowing unit and the feed chain are synchronized, there is no disturbance of the culm at the stage of conveying the cut grain culm, and the mowing work and the conveying work are performed. It can be done efficiently.

According to the third aspect of the present invention, since the clutch according to the first aspect is a one-way clutch, the power transmitted from the engine to the mowing section and the feed chain is transmitted via the hydraulic speed change mechanism. Either the route or the transmission route that does not go through the hydraulic speed change mechanism can be automatically selected according to the traveling speed of the machine to ensure good raising performance of grain stems and cutting blade cutting performance. Therefore, it is possible to efficiently carry out the work for cutting the grain culm.

According to the invention of claim 4, since the threshing portion is provided between the engine and the clutch,
When power is transmitted to the mowing part and the feed chain via the clutch without using the hydraulic speed change mechanism, the mowing part, the feed chain and the threshing part can be synchronized with each other.
The mowing work by the mowing section → the conveying work by the feed chain → the threshing work by the threshing section can be continuously and efficiently performed.

[Brief description of drawings]

FIG. 1 is a schematic transmission mechanism diagram showing a synchronization control mechanism of a mowing unit and a feed chain in a combine.

FIG. 2 is a graph showing the traveling speed of the combine and the speeds of the mowing unit and the feed chain.

FIG. 3 is a schematic transmission mechanism diagram showing another embodiment of the feed chain drive device in the combine.

FIG. 4 is a schematic explanatory view showing a belt tension structure.

FIG. 5 is a schematic explanatory view showing a belt tension structure.

FIG. 6 is a schematic explanatory view showing a belt tension structure.

FIG. 7 is a schematic explanatory view showing a conventional belt tension structure.

FIG. 8 is a schematic explanatory view showing a conventional belt tension structure.

[Explanation of symbols]

 2 Mowing section 3 Threshing section 5 Traveling section 6-1 Hydraulic speed change mechanism 7 Feed chain 13 One-way clutch 41 One-way clutch

Claims (4)

[Claims] 1. An engine (4) and a hydraulic speed change mechanism (6-1) for driving a traveling section (5) are interlockedly connected to each other, and the hydraulic speed change mechanism (6-) is connected.
1) and the mowing part (2) are interlocked via the one-way clutch (13), while the engine (4) and the mowing part (2) are interlockingly connected via the clutch so that The cutting unit (2) is configured to be driven through the clutch when the vehicle is stopped or at a certain speed or less, and when the traveling speed is more than the certain speed, the cutting unit (2) is moved by the hydraulic speed change mechanism. A tuning control mechanism of a mowing part in a combine, which is configured to be driven from a (6-1) side through a one-way clutch (13). 2. An engine (4) and a hydraulic speed change mechanism (6-1) for driving a traveling section (5) are interlockingly connected to each other, and the hydraulic speed change mechanism (6-
1) and the mowing part (2) and the feed chain (7) are interlockingly connected via the one-way clutch (13), while the engine (4) and the mowing part (2) and the feed chain (7) are clutched. When the traveling speed of the aircraft is stopped or below a certain speed, the cutting unit (2) and the feed chain (7) are configured to be driven via the clutch and If the speed is above a certain speed, remove the mowing part (2) and feed chain (7) from the hydraulic speed change mechanism (6-1) side with a one-way clutch.
(13) A tuning control mechanism for the reaper in the combine, which is configured to be driven via (13). 3. The one-way clutch (4
The synchronization control mechanism of the reaper in the combine according to claim 1 or 2, characterized in that it is 1). 4. The tuning control mechanism of the reaper in the combine according to claim 1, wherein a threshing unit (3) is provided between the engine (4) and the clutch.