JP2009201427A - Reaping part of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform reverse rotating operation of a raking transporting apparatus with light torque, and to facilitate removal of clogging grain culms. <P>SOLUTION: An intermittent clutch (20) for engaging and disengaging transmission to a pre-treating part (4A) is installed in a reaping transmission route between the pre-treating part (4A) of a reaping part (4) and a post-treating part (4B) thereof. The pre-treating part (4A) is drivably connected and composed so as to be rotated and driven from the reaping transverse transmission shaft (22) in a reaping transverse frame. A reverse rotation regulating means (23) for regulating the reverse rotation of a raising up apparatus (8) is installed in the transmission route between the raising up apparatus (8) and the reaping transverse transmission shaft (22). A manual handle (25) for forcibly reversely rotating and driving the reaping transverse transmission shaft (22) is freely detachably installed at the end of the reaping transverse transmission shaft (22). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a combine harvester for harvesting and threshing napped grains in a field.

Conventionally, a weed body that divides the raised cereal left and right, an elevating device that elicits the cereal after weeding, a clipper-type reaper that harvests the cereal after erecting, and a cereal after harvesting In a combine equipped with a cutting and transporting device for picking up and transporting cereals after being transported to the threshing unit at the rear, taking over and transporting the cereal straw after transporting to the threshing unit at the rear If the cereal clogging occurs at the junction of the left and right scraping and conveying devices located at the approximate center of the mowing unit, the entire drive system of the mowing unit is automatically reversed based on the operation of the manual operation tool. There are techniques to drive and remove the stuffed cereal. Further, in a combine equipped with such a reversing means, a means for restricting the reversal of the pulling device composed of a rugged chain that can be raised and lowered is provided. However, there is a technique that prevents inconvenience such as damage to the apparatus (see, for example, Patent Document 1).
JP 2006-223132 A

  In the above-mentioned prior art, when the cereal clogging occurs in the conveying system of the cutting unit, the entire driving system of the cutting unit excluding the raising device is driven in reverse, so the torque is too large and the engine As long as the driving force such as HST or HST is not borrowed, it is difficult only by human operation.

  An object of the present invention is to solve the conventional problems, to enable the reverse operation of the scraping and conveying apparatus with a light torque, and to facilitate the removal of clogged cereals.

In order to solve the above problems, the present invention has taken the following technical means.
That is, a pulling device (8) provided with a chain (8b) with a raising and lowering lug (8a) that stands at the start of the pulling action and overturns at the end of the action, and a harvesting device (9) that cuts the culm after raising The pretreatment unit (4A) provided with a scraping and transporting device (10) for scraping and transporting the harvested culm and the culm after transporting by the scraping and transporting device (10) A reaping direction (4) consisting of a post-processing unit (4B) provided with a cereal raising transporting and feeding device (11) that feeds and feeds the rear threshing unit (3) with respect to the vehicle body (1) A vertical cutting frame (16) that can be moved up and down along the cutting edge, and a cutting horizontal frame (17) that is provided along the left and right lateral direction at the tip of the cutting vertical frame, in front of the cutting section (4) In the cutting power transmission path between the processing unit (4A) and the post-processing unit (4B), the pre-processing unit (4A) An intermittent clutch (20) for turning on and off the transmission is provided, and each device (8, 9, 10) of the pretreatment section (4A) is interlocked with the cutting horizontal transmission shaft (22) in the cutting horizontal frame (17). And a reverse rotation restricting means (23) for restricting the reverse rotation of the pulling device (8) in a transmission path between the pulling device (8) and the cutting horizontal transmission shaft (22), The harvesting portion of the combine is characterized in that a manual handle (25) for forcibly driving the cutting horizontal transmission shaft (22) in a reverse direction is detachably attached to an end portion of the cutting horizontal transmission shaft (22).

  When the culm is jammed in the take-in conveyance path, the drive system to the pre-processing unit 4A side of the cutting unit 4 is cut off, and the cutting horizontal transmission shaft 22 is driven in reverse by operating the manual handle 25. As a result, the jamming apparatus 10 is driven in reverse to remove the clogged cereals. When the pre-processing unit is reversely rotated, the reverse rotation of the pulling device 8 is restricted by the reverse rotation restricting means 23, and the pulling device 8 is prevented from being damaged due to the reverse rotation of the pulling device 8.

  According to the present invention, the chain 8b with the lug 8a that can be raised and lowered such as the post-processing unit 4B and the pulling device 8 is not driven in reverse rotation. Thus, the clogging of the cereal can be easily removed. Further, the manual handle 25 for performing the reverse rotation driving operation of the cut-off horizontal transmission shaft 22 can be easily operated from the left and right ends of the cutting portion 4 while checking the degree of clogging of the cereal.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a side view of a combine. This traveling vehicle body 1 includes a pair of left and right traveling crawlers 2 and 2, and a reaping portion 4 is provided at the front of a threshing device (threshing portion) 3 mounted at the rear. A grain tank G is provided on the lateral side of the mowing unit 4 and has a driver's seat 5 and an operation box 6 and the like, and the rear of the driver's operation unit temporarily stores threshing grains. Equipped with.

  The reaping part 4 is a weed body 7, 7, which splits the napped cereal to the left and right, a three-row cereal raising device 8 that causes the cereal after the weeding, and the cereal after the raising. The pre-processing unit 4A provided with a clipper-type harvesting device 9 for harvesting, a scraping and transporting device 10 for scraping and transporting the harvested culm, and the culm after transported by the scraping and transporting device A post-processing unit 4B provided with a cereal lifting and conveying and feeding device 11 and the like that conveys and feeds to the threshing unit 3 at the rear, and reaped up and down with respect to the vehicle body and provided along the front-rear direction It equips with the cutting frame 17 provided along with the vertical frame 16 and the front-and-rear horizontal direction at the front-end | tip of this cutting vertical frame.

The pulling device 8 is composed of a chain 8b with a rugged lug 8a that rises at the start of the pulling action and falls down at the end of the action.
The rake transfer device 10 can be raised and lowered to latch and transfer the chopped star wheel 10a that rakes the pestle stock side, the squeeze transfer chain 10b that pinches and transfers the cereal stock side, and the tip side of the pestle It consists of the tip transport chain 10c with a lag.

  The rotational power from the engine E is input to the traveling mission case 30, and the driving force input to the traveling mission case is shifted by the HST 31 and output from the mission output shaft 32. The driving force from the mission output shaft 32 is transmitted to the cutting input shaft 18 via the belt 33 and the cutting input pulley 34. The belt 33 is provided with a cutting tension clutch that turns on and off the entire drive system of the cutting unit 4.

  The driving force from the cutting input shaft 18 is applied to the cutting vertical transmission shaft 19 in the cutting vertical frame 16 via the bevel gears G1 and G2 and to the post-processing unit 4B via the bevel gears G3, G4, G5, G6 and G7, G8. It is set as the structure transmitted to the cereal lifting conveyance supply apparatus 11. FIG.

  The mowing vertical transmission shaft 19 is divided into an input side transmission shaft 19a and an output side transmission shaft 19b, and between the shafts 19a and 19b, the rotational power to the output side transmission shaft 19b is turned on and off. A clutch 20 is provided and can be switched intermittently by a pre-processing clutch lever 21. When the clutch lever 21 is operated to “engage” the clutch, the output-side transmission shaft 19b rotates, and the cutting-side horizontal transmission shaft 22 in the cutting-side horizontal frame 17 is driven to rotate from the transmission shaft 19b via the bevel gears G9, G10. Linked configuration. When the clutch is disengaged, the rotational power from the input side transmission shaft 19a is not transmitted to the output side transmission shaft 19b side. In addition, since the power is transmitted from the cutting input shaft 18 to the cereal lifting and feeding apparatus 11, the power can be transmitted even if the intermittent clutch 20 is "disengaged".

  The mowing lateral transmission shaft 22 is interlocked so as to rotate and drive the lug 8b with lugs of the device 8 through the bevel gears G11 and G12, the vertical transmission shaft 35, the horizontal transmission shaft 36, and the like. The reaping device 9 is interlocked to be driven from the reaping lateral transmission shaft 22 via the gear mechanism 37, the crankshaft 38, and the like, and the take-up conveying device 10 is pulled up from the longitudinal transmission shaft 35 to the bevel gear G13, The left side tip transport chain 10c is rotated via the left side feed chain 10b, the left side staring star wheel 10a and the tip transmission shaft 39 via G14. The right-hand drive conveyance chain 10b, the right-hand drive star wheel 10a, and the right-hand tip transfer chain 10c are interlocked to be driven.

  Reversal restricting means for restricting the reverse rotation of the pulling device 8 in the power transmission path between the grain raising device 8 and the cutting horizontal transmission shaft 22 and on the lower side of the power transmission route to the left side picking and conveying device 10 23 is provided. Further, since the scooping transport device 10 is provided with a tip transport chain 10c made of a chain with a rug that can be raised and lowered, in the transmission path between the scissor transport chain 10c and the scoop transport chain 10b, the tip transport Reverse rotation restricting means 24 for restricting the reverse rotation of the chain 10c is provided. As shown in FIG. 2, the reverse rotation restricting means 23, 24 may be a one-way clutch that engages only in the forward rotation direction and blocks the reverse rotation direction. As shown in the embodiment of FIG. When the clutch is employed, the pre-processing clutch lever 21, the pulling clutch lever 41, the tip clutch levers 42L and 42R are interlocked, and the plurality of clutches “ON” and “OFF” are operated by the single overall operation clutch lever 43. It is good to have an interlocking configuration so that they can be performed simultaneously. It should be noted that it is convenient to install the general operation clutch lever 43 in the vicinity of the reverse rotation manual handle described later.

  A manual handle 25 for forcibly driving the mowing horizontal transmission shaft 22 in reverse is provided on the outer end side of the mowing horizontal frame 17 and is detachably attached to the mowing lateral transmission shaft 22. When the intermittent clutch to the pre-processing unit is set to “disengagement” and the mowing lateral transmission shaft 22 is forcibly driven in reverse by the manual handle 25, particularly the culm and weed that are jammed by the reverse drive of the scraping and conveying device. Can be removed. At this time, the pulling device 8 and the tip conveying chain 10c are not reversed by the action of the one-way clutches 23 and 24.

Side view of the main part of the combine Deployment transmission route diagram of the main part of the combine Deployment transmission route diagram of the main part

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling vehicle body 4 Mowing part 4A Pre-processing part 4B Post-processing part 8 Pulling-up apparatus 9 Mowing apparatus 10 Stucking conveyance apparatus 11 Grain lifting conveyance supply apparatus 16 Mowing vertical frame 17 Mowing horizontal frame 19 Mowing vertical transmission shaft 20 Intermittent clutch 22 Mowing horizontal transmission shaft 23 Reverse rotation restricting means 25 Manual handle

Claims (1)

  A pulling device (8) having a chain (8b) with a rugged lug (8a) that stands up at the start of the pulling action and overturns at the end of the action, a reaping device (9) that cuts the culm after raising, and reaping The pretreatment unit (4A) provided with a scraping and conveying device (10) that scrapes and conveys the subsequent cereal and the cereal after the squeezed and conveyed by the above-mentioned conveying and conveying device (10) are taken up and conveyed. A reaping part (4) comprising a post-processing part (4B) provided with a cereal lifting and feeding device (11) for feeding to the rear threshing part (3) is provided along the longitudinal direction with respect to the vehicle body (1). The cutting vertical frame (16) that can be moved up and down and the cutting horizontal frame (17) provided along the left and right lateral direction at the tip of the vertical cutting frame are provided, and the preprocessing unit of the cutting unit (4) In the cutting transmission path between (4A) and the post-processing unit (4B), transmission to the pre-processing unit (4A) is performed. An intermittent clutch (20) that cuts off is provided, and each device (8, 9, 10) of the preprocessing section (4A) is driven in conjunction with a cutting horizontal transmission shaft (22) in the cutting horizontal frame (17). A reverse rotation restricting means (23) for restricting reverse rotation of the pulling device (8) is provided in a transmission path between the pulling device (8) and the cutting horizontal transmission shaft (22). A combine harvester comprising an end portion of a transmission shaft (22), wherein a manual handle (25) for forcibly driving the cutting horizontal transmission shaft (22) in a reverse direction is detachable.

Images