JP3853352B2 - Pre-processing equipment for combine - Google Patents

Description

This invention relates to a pretreatment MakotoSo location in the combine.

Conventionally, in a combine, the output from an engine is branched and output to a traveling transmission system and a preprocessing transmission system to a preprocessing unit including grain transport, and a traveling transmission for driving a traveling device and a preprocessing unit driving It is known that the preprocessing control device is provided with speed interlocking means so as to change the driving speed of the preprocessing unit in conjunction with the change of the traveling speed in conjunction with the preprocessing transmission.
In the above-described configuration, the drive speed after the shift of the travel transmission is detected after the output from the engine is branched to the travel transmission system and the pre-processing transmission system, and this drive speed detection information Based on the standard speed control for driving the preprocessing unit at a speed synchronized with the traveling speed by controlling the actuator for shifting the preprocessing transmission, and the driving speed of the preprocessing unit for the traveling speed It is possible to switch to constant speed control that keeps constant regardless of changes, and keeps stable cereal conveyance linked to the traveling speed while the aircraft is traveling, and when the aircraft traveling is stopped A so-called forced scraping operation in which the transmission and the pre-processing transmission are separated from each other and the cereal conveyance of the pre-processing unit is continued can be performed (see, for example, Patent Document 1) .
JP 2003-164214 A

The present invention aims to provide a pretreatment MakotoSo location in combine which can be further operability cooperative operation between the running speed and the pre-processing speed of the combine well, and exactly the line TURMERIC is.

In order to solve the above-mentioned problem, the first technical means adopted by the present invention is a standard speed that interlocks so that the driving speed of the pre- processing unit is large when the traveling speed is large and small when the traveling speed is small. The mode is linked so that it is large when the traveling speed is large and small when the traveling speed is low, and the lodging mode in which the driving speed of the pre-processing unit is increased compared to the standard speed mode, and the traveling speed A constant speed mode that is held constant regardless of changes, a mode changeover switch (9b) that can switch between the standard speed mode and the lodging mode, the standard speed mode or the lodging mode, and the constant speed mode. the switchable switching means (9a) is provided, wherein the switching by the switching means (9a), by priority over switching by the mode selector switch (9b), said mode selector switch (9b) is a standard speed Even if switched to either over de or lodging mode, when switching the switching means (9a) in the constant speed mode, the driving speed of the pre-processing unit is held constant, characterized in that.
Further, as a second technical means, a main transmission lever (10) for changing the traveling speed is provided in front of the driver's seat (8), and a mode switch (9b) is provided on the rear surface of the main transmission lever (10). It is provided in that .

Embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 and 2, reference numeral 1 denotes a combine. The combine 1 is provided with a left and right crawler travel devices 4 and 4 on a body frame 3 provided with a pre-processing section 2 at its front portion so as to be movable up and down. 3, in addition to the driving cabin 5, a threshing section (not shown), a grain tank 6, a discharge auger 7, and the like are placed and fixed to constitute the combine 1.

  On the left side of the driver's seat 8 provided in the driving cabin 5 is provided with a main transmission lever 10 having a gripping portion 10a provided with a forced take-in switch 9a and a depression switch 9b composed of a momentary switch described later. A sub shift lever 11 is provided at a left position further away from the shift lever 10, and the vehicle travels by a combined shift operation of the levers 10 and 11.

  Further, the power transmission configuration of the combine 1 will be described. As shown in FIG. 3, two pulleys 13 and 14 for extracting output are attached to the drive shaft 12 a of the engine 12, and the driving force from the engine 12 is Is branched and output to a traveling transmission system A that is transmitted to the traveling HST 15 via the pulley 13 and a pre-processing transmission system B that is transmitted to the handle cylinder input shaft 16 via the pulley 14, and the traveling is provided with the HST 15. Driving forces for the left and right traveling devices are respectively output from the transmission 17 so as to perform variable speed traveling when the aircraft is traveling straight and turning in the left and right directions, and pulleys attached to the pulley 14 and the barrel input shaft 16. A belt 19 for driving force transmission is wound between the belt 18 and a tension clutch structure provided in the middle of the winding of the belt 19. It is configured to perform connection and disconnection of the driving force transmitted to the preprocessing transmission system B via the grain clutch 20.

  Then, the driving force to the pretreatment transmission system B is transmitted to the input pulley 24 of the work machine HST 23 constituting the work machine transmission 22 via the barrel input shaft 16 and the pulley 21, and is driven from the work machine transmission 22. The force is branched and output to the transmission system B1 to the pretreatment unit 2 and the transmission system B2 to the threshing feed chain 25.

  The work machine transmission 22 has two output shafts, a preprocessing output shaft 26 for driving force output to the preprocessing unit 2 and a feed chain output shaft 27 for driving force output to the threshing feed chain 25. The threshing feed chain 25 is driven via a sprocket 28 provided on the end side of the feed chain output shaft 27, and the handling cylinder 29 is connected to the handling cylinder input shaft 16 via a bevel gear 30. It is driven.

  On the other hand, the pretreatment unit 2 includes a cutting blade device 31, a pulling device 32, a handling depth conveyance body 33, and the like. 34 is carried out via a transmission belt 37 wound around a pulley 35 attached to the pulley 34 and the pulley 36 attached to the pre-processing output shaft 26, and a driving force is applied to the input shaft 34. The transmission system B1 to the input preprocessing unit 2 has a structure in which each mechanism is driven at a driving speed corresponding to the rotational speed (speed) of the driving force. A mowing clutch 38 having a tension clutch structure for connecting / disconnecting transmission of driving force to the input shaft 34 is provided, and connecting / disconnecting is performed by an on / off operation of an unillustrated mowing clutch switch provided in the driver's seat.

  Next, the control configuration of the above-described traveling transmission system A, the preprocessing transmission system B including the transmission system B1 to the pretreatment unit 2 and the transmission system B2 to the threshing feed chain 25 will be described.

  First, an engine rotation sensor S1 for detecting the rotational speed of the engine 12 is attached to a drive shaft 12a of the engine 12 that outputs a driving force to each of the transmission systems A and B (B1, B2). The driving force transmitted from 12a to the traveling HST 15 of the traveling transmission 17 is transmitted from the auxiliary transmission output shaft 40 to the left and right traveling devices (not shown) via the main transmission lever 10 and the auxiliary transmission mechanism 39 provided in the traveling transmission system A. ), The transmission speed of the airframe is shifted, and a transmission rotation detection sensor S2 is attached to the auxiliary transmission output shaft 40 to detect the rotational speed (traveling speed) of the auxiliary transmission output shaft 40. A main transmission potentiometer P serving as a switching position sensor for detecting the switching position of the lever 10 is provided at the base end of the main transmission lever 10. It is provided.

  Further, a motor M1 as an actuator for operating a swash plate angle to perform a speed change operation of the work machine HST23 is integrally attached to a trunnion shaft (not shown) of the work machine HST23 constituting the preprocessing transmission system B. In addition, the preprocessing output shaft 26 of the work machine transmission 22 is provided with a conveyance rotation detection sensor S3 for detecting the rotation speed of the preprocessing output shaft 26 (driving speed of the preprocessing unit 2). Further, the cutting clutch 38 is provided with a preprocessing clutch motor M2 for operating the cutting clutch 38 to be turned on and off, and is configured to automatically control turning on and off of the cutting clutch 38 by the preprocessing clutch motor M2.

  Further, each of the sensors S2 and S3 and the forced take-in switch 9a and the overturning switch 9b provided on the main transmission lever 10 perform a shifting operation of the work implement HST23 via the control unit 41 as shown in FIG. The conveyance drive control of the preprocessing unit 2 is performed by controlling the motor M1. Reference numeral 42 denotes a lodging lamp that is turned on when the lodging switch 9b is turned on.

That is, as shown in FIG. 5, the detection information data is first read by the transmission rotation detection sensor S2, and then the detection information data is read by the conveyance rotation detection sensor S3. Thereafter, it is determined whether the forced take-in switch 9a is ON or OFF, and as shown in FIG. 6, while the forced take-in switch 9a is pressed in the ON state, regardless of the change in traveling speed, The working machine HST23 for shifting the driving speed (preprocessing rotation speed R) of the processing unit 2 is held constant (constant speed mode setting), and when the forced take-in switch 9a is released, the preprocessing unit 2 in the next stage automatically. The drive control is linked to the travel speed, and the process proceeds to the determination of whether the depression switch 9b is ON or OFF.

When the lodging switch 9b is in the OFF state, normal interlocking driving is performed (standard speed mode setting). If the switch 9b is pressed in the ON state, the pre-processing unit 2 is compared with the standard speed mode . It is switched to the lodging mode setting in which the driving speed is increased.

  Therefore, in the normal work traveling of the combine 1, only the main shift lever 10 that is frequently operated is gripped, and the operation related to the mowing and threshing work is extended to the operation portion provided in another part as in the past. It is possible to carry out the operation without any error, and it is possible to prevent the erroneous operation with respect to the lever operation and to ensure the safety of the cutting and threshing work accompanying the traveling of the aircraft.

(A) is the whole side view of a combine. (B) is the principal part perspective view in a driving | running cabin same as the above. (A) is a principal part front view of a main transmission lever. (B) is the principal part side view same as the above. It is a power transmission system diagram of a combine. It is a connection control figure of each sensor and switches. It is a flowchart figure of conveyance drive control. It is a graph which shows the relationship between pre-processing drive speed and traveling speed.

Explanation of symbols

12 Engine 10 Main transmission lever A Traveling transmission system 2 Preprocessing part B Preprocessing transmission system 1 Combine 9a Forced take-in switch (switching means)
9b Lodging switch (mode switch)

Claims (2)

The driving speed of the pre-processing unit,
Standard speed mode that is linked so that it is large when the traveling speed is large and small when the traveling speed is small ,
A lodging mode in which the driving speed of the pre-processing unit is increased as compared with the standard speed mode, while interlocking to be large when the traveling speed is large and small when the traveling speed is small,
A constant speed mode that keeps constant regardless of changes in travel speed , and
A mode selector switch (9b) capable of switching between the standard speed mode and the lodging mode;
Provided a switching means (9a) capable of switching between the standard speed mode or the lodging mode and the constant speed mode ,
The switching by the switching means (9a) is prioritized over the switching by the mode switching switch (9b), and the switching means (9b) is switched to either the standard speed mode or the breakdown mode. When 9a) is switched to the constant speed mode, the driving speed of the preprocessing unit is kept constant.
Pretreatment MakotoSo location in combine, characterized in that. A main transmission lever (10) for shifting the traveling speed is provided in front of the driver's seat (8), and a mode changeover switch (9b) is provided on the rear surface of the main transmission lever (10);
Pretreatment MakotoSo location in combine of claim 1, wherein a.

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