JPH05268820A - Reaping device of combine - Google Patents

Abstract

PURPOSE:To control raising, gathering and transportation suitable for conditions of grain culm such as length of grain culm by changing and regulating transmission ratio of grain culm raising device to a gathering and transporting device by an infinitely variable gear. CONSTITUTION:An infinitely variable gear in a shape of ring cone is fixed to one side end of an upper frame 17 and a grain culm raising device 2 is changed in velocity corresponding to the conditions of grain culm. A transmission ratio of the grain culm raising device to a gathering and transporting device 4 is properly changed and regulated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine harvester, which controls the transmission ratio of a grain culm evacuation device to a harvester for collecting harvested grain culms, thereby controlling the culm length and lodging of grain culms. The appropriate cutting is done according to the conditions of the grain culm.

[0002]

2. Description of the Related Art A grain culm raising device and a collecting device for picking up and feeding a harvested grain culm are set at a constant relation speed, and the traveling speed of the reaping device as a whole is reduced. It is common for relationships to be shifted. The relation between the raising speed and the collecting speed of the grain culm in the reaping device is as follows:
It depends greatly on the degree of lodging. Therefore, simply changing the transmission speed with respect to the traveling speed as the whole mowing device,
It is difficult to perform suitable cutting for each grain culm condition.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a grain culm raising device 2 having a raising tine 1 which raises a certain posture while engaging and moving the culms to the rear upper side is provided as a grain culm condition. Of the combine harvester for changing and controlling the transmission ratio of the grain culm raising device 2 to the collecting device 4 for transporting the harvested grain culm to the rear side of the cutting blade 5 by shifting the speed with the continuously variable transmission 3 while detecting The configuration.

[0004]

The transmission of the combine to the reaping device is transmitted from the transmission system path that is transmitted to the collecting device 4 to the grain culvert raising device 2 through the continuously variable transmission device 3. The transmission ratio of the grain culm raising device 2 to the collecting device 4 is changed by the shift control of 3. The relationship between the optimum transmission ratio of the grain culm raising device 2 with respect to the collecting device 4 is preset in the controller, and the continuously variable transmission 3 is controlled by a sensor for detecting the condition of the grain culm, a mode changeover switch, or the like. It is possible to control according to the set transmission ratio while controlling the shift. Therefore, it is possible to perform fine raising and collecting control according to the length and the degree of lodging of the grain culm, and to perform smooth and appropriate harvesting.

[0005]

EXAMPLE Regarding the structure of the combine, a pair of left and right crawlers 7 are provided on a vehicle body 6 so as to be driven and driven by a sprocket 9 mounted on a lower end portion of a transmission case 8. E, a cockpit 10, a threshing device 11 and the like are mounted, and a front part supports a mowing device 13 which is lifted and lowered by extension and contraction of a lift cylinder 12.

This reaping device 13 is provided with a reaping frame 14 which is rotatably supported with respect to the vehicle body 6 and a lower frame 15 which is integrated with the lower end of the reaping frame 14 in the left-right direction.
The main parts are a side frame 16 that stands up from both left and right sides of the lower frame 15, an upper frame 17 that connects upper end portions of the side frame 16, and the like. A reciprocating cutting blade 5 is mounted on the lower frame 15, and is transmitted by a crank mechanism 19 at an end of the lower frame 15 on the cutting blade drive shaft 18 side. This cutting blade drive shaft 18
Is transmitted from a mowing input shaft 21 on the vertical rotation axis of the mowing frame 14 via a shaft 20 in the mowing frame 14.

The collecting device 4 is composed of a stock carrier 22 for holding and carrying the stock part, and a head part carrier 2 for guiding and guiding the tip part.
3 and a scraping device 24, etc. for scraping and guiding the grain stalks to the front part of the stock-source transporting device 22. The grain stalks of each row to be cut by the cutting blade 5 are collected and transferred to the rear grain stalks. It is transferred to the device 25. The left and right sides of the collecting device 4 are connected to the shaft 2 from the middle of the collecting and transmitting shaft 26 of the side frame 16.
It is transmitted via 7,28. In addition, the collecting device 4 in the central portion
Is transmitted from the collecting and transmitting shaft 29 in the upper frame 17 via the shaft 30. Sprockets 31 and 32 are provided above and below the shafts 28 and 30, respectively, and the upper sprocket 31 drives the spike carrier 32 and the lower sprocket 32 drives the stock carrier 22. Further, the collecting and transmitting shaft 29 for transmitting the collecting and collecting device 4 in the central portion is interlocked with the collecting and transmitting shaft 26 on one side, and from the collecting and transmitting shaft 26 on the other side.
The pull-up drive shaft 33 in the upper frame 17 is interlocked via the continuously variable transmission 3.

The grain culm raising device 2 is a device for rotatably transmitting the raising tines 1 to the chain 35 so that the raising tines 1 are laterally projected. The grain culm raising device 2 is provided between the front end of the weed frame 34 and the upper frame 17. The pull-up chain 35 is driven from the pull-up drive shaft 33 through shafts 36, 37 and the like. A ring cone type continuously variable transmission 3 is provided on one end side of the upper frame 17, and the drive shaft 3 is pulled up from the collecting and transmitting shaft 26.
Continuously shifts between transmission to 3. This continuously variable transmission 3
A shift motor M1 that is controlled and operated by an output from a controller CPU having a microcomputer is provided to shift gears according to the control output. Reference numeral 38 denotes a pull-up rotation sensor that detects the rotation of the pull-up drive shaft 33, and serves as an input unit of the controller CPU.

The grain culm transfer device 25 mounted on the vertical rotation center part side of the mowing frame 14 comprises a stock transfer device for holding and transferring the base part and a head transfer device for transferring and guiding the tip side. The sprocket shaft 40 of each transfer device is driven from the reaping input shaft 21 via the shaft 39. Such a grain culm raising device 25 is configured so as to be rotated around the shaft 39 to change the culm direction position to be transferred, and is used as an operation lever, a grain culm supply port of the threshing device 11, or the like. The movement is controlled by a handling depth sensor or the like provided.
As a result, the transfer position of the stems to be transferred from the transfer device 4 to the transfer device 25 is changed to the stocker side or the tip side, and the transfer position to the feed chain 42 of the threshing device 11 is changed and handled. The depth of supply of the tip to the chamber is controlled to be almost constant. Reference numeral 41 denotes a handling depth supply adjusting angle sensor, which is provided on a shaft 39 serving as a rotation center for detecting the rotation angle of the grain culm transfer device 25, and detects the detected value by the controller C.
Inputting to PU.

From the engine E to the mission case 8
The transmission device, the input shaft 21 of each part of the harvesting device 13, and the transmission of each part of the threshing device 11 are provided as a main transmission device from the engine drive shaft 43 driven by the engine E to the input side of the mission case 8. A threshing input shaft 49 that transmits the hydraulic continuously variable transmission HST and is interlocked with the handling barrel 44 of the threshing device 11 and the Karako shaft 45, the first spiral shaft 46, the second spiral shaft 47, the culm device 48, etc. of the threshing selection unit. And the threshing device 11 through the deceleration transmission device and the like in the transmission case 50.
The sprocket 61 of the feed chain 42 for nipping and transferring the root part of the grain culm, the reaping input shaft 21 of the reaping device 13, and the like are transmitted. In the transmission path from the deceleration transmission device in the transmission case 50 to the feed chain 42, the reaping input shaft 21, and the like, continuously variable transmissions 51 and 52 in the form of ring cones that are continuously variable by the speed change motors M2 and M3.
Is provided.

This continuously variable transmission 51 includes a cutting input shaft 21.
The feed chain 42 and the feed chain 42 may be provided together in a transmission path, or may be provided in a transmission path after being separated to the reaping input shaft 21. In any of the forms, the continuously variable transmission 52 is provided in the transmission path after being separated into the feed chain 42. The continuously variable transmissions 51 and 52 are shifted by the output of the shift motors M2 and M3 from the controller CPU,
Transmission control of the reaping input shaft 21, the feed chain 42, etc. is controlled.

Reference numeral 53 denotes a vehicle speed sensor, which is a transmission case 8
The vehicle speed, that is, the mowing work speed is detected by taking the rotation speed from the internal transmission mechanism. Reference numeral 54 is a mode switch for selecting the control mode of the controller CPU by switching between a standard mode with a low degree of lodging and a lodging mode with a large degree of lodging depending on the degree of lodging of the grain culm. 55 is a cutting rotation sensor for detecting the number of rotations of the cutting input shaft 21, and 56 is a feed chain 4
2 rotation sensor.

In the standard mode, as shown in FIG. 2, the long culm raising speed B is faster than the cutting and conveying speed A and the short culm raising speed C is as follows.
But on the other side of this. In the lodging mode, the long culm raising speed B is faster than the short culm raising speed C as well as the reaping conveyance speed A, but there is a relationship faster than the short culm raising speed C. In the control memory of the controller CPU, the relationship between the mowing work speed (vehicle speed) and the mowing transport speed A, the raising speeds B, C, etc. is set in advance in the control memory, and the vehicle speed sensor 53 is detected accordingly. The harvesting conveyance speed A with respect to the harvesting work speed is controlled by the speed change motor M2 output control of the continuously variable transmission 51, and the grain culm raising speeds B and C are controlled by the speed change motor M3 output control of the continuously variable transmission 52.

The raising speeds B and C of the grain culm are different between the long culm and the short culm, and this point is that the feed adjustment angle sensor 41 in the depth control device for controlling the depth of the grain adjusts this grain. Since the culm length of the culm is detected, the grain culm raising speed is set to the long culm raising speed B while determining whether the long culm or the short culm is input by using the detection value of the supply adjustment angle sensor 41,
The variable speed control of the continuously variable transmission 3 is performed with the short culm raising speed C.

7 and 8 are different from the above example in that
In the collecting and merging portion of the collecting and feeding device 4, a hanging cover 57 made of a soft resin material is provided on the lower side of the stock carrier transporting device 22 on the side for receiving the feeding of the collecting and culm. The stock base of the culm is the lower cutting frame 14 and the lift cylinder 1.
Suspension link 5 of mowing frame 14 scaled by 2
Prevents straws from coming into contact with 8 or the like. It is attached by hanging it downward from the guide member 60 of the conveying chain 59 located on the rear side of the collecting and converging part of the stock source conveying device 22, and extending over the inheritance part with the grain culm transferring device 25, and especially the reaping device 13 When it comes down and comes into contact with the suspension link 58, the hanging cover 57 covers the upper side of the suspension link 58, and by the root part of the collecting culm passing through the front upper side of the hanging cover 57. , Straws, etc. are cleaned outward.

[Brief description of drawings]

FIG. 1 is a control block diagram.

FIG. 2 is a control setting graph.

FIG. 3 is a control setting graph.

FIG. 4 is a transmission mechanism diagram of the reaping device section.

FIG. 5 is a side view of the combine.

FIG. 6 is a plan view thereof.

FIG. 7 is a plan view of a combine showing another embodiment.

FIG. 8 is a side view of a part thereof.

[Explanation of symbols]

 1 Raising tine 2 Grain culm raising device 3 Continuously variable transmission 4 Collection device 5 Cutting blade

Claims (1)

[Claims] 1. A grain culm raising device 2 having a raising tine 1 for raising the culm in a fixed posture while engaging the culms and moving it upward and rearward, and a continuously variable transmission while detecting the condition of the grain culm. A combine harvesting device for changing and controlling the transmission ratio of the grain culm raising device 2 with respect to a collecting device 4 for transporting the harvested grain culm to the rear side of the cutting blade 5 by shifting the gear by 3.