JPH0233649Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a vehicle body equipped with a threshing section configured to supply the entire harvested grain culm and a boarding and driving section, to reap the planted grain culm and to supply the reaped grain culm. A reaping pre-processing section for supplying to the threshing section is connected below the driving section so as to be able to freely drive and oscillate vertically, and a rotating auger collects the harvested grain culms at the center in the left-right direction of the vehicle body and sends them out toward the rear side of the vehicle body. The present invention relates to a combine harvester in which a conveyor for conveying the grain culm supplied from the rotary auger toward the threshing section is provided in the pre-harvesting section.

Conventionally, this type of combine harvester has a rotary auger or a conveyor, and the pre-reaping section is long in the front and back, and the driving section is provided above the proximal end of the pre-reaping section. It was not possible to increase the vertical swing range of the reaping pretreatment section.
For this reason, when the vehicle body swings back and forth significantly, such as when going over a ridge, even if the pre-reaping treatment section is lifted to its upper limit, there is a risk that the tip end thereof will collide with the ground.

The present invention is a combine harvester made in consideration of the above-mentioned circumstances, and even when the vehicle body swings back and forth significantly such as when going over a ridge, the pre-harvesting section is raised high to prevent collision with the ground and provide safety. The purpose is to make it possible to drive.

Next, an embodiment of the combine harvester of the present invention will be described based on the drawings.

A threshing section A is configured to supply the entire harvested grain culm to a handling chamber 1 and handle it by a rotating handling cylinder 2, and a swinging sorting plate 4 is used to collect the processed material scraped out from the handling chamber 1 by a beater 3. The waste straw is sorted into waste straw and grains by a dust removal port 5, and the waste straw is conveyed and discharged to a dust outlet 5, and the processed material falling from the handling chamber 1 is sorted by a sorting wind from a winnow 6. A sorting section B configured to air-separate grains and dust, a threshed grain storage section C equipped with a cloth-like upper cover 7 that can be rolled up in an open state, a driving section E, and a boarding operation section D are operated by a crawler. Traveling device 8
and provided on a chassis equipped with an idling rear wheel 9 for steering,
A reaping pretreatment section F for raising and reaping the planted grain culms and supplying the reaped grain culms to the threshing section A is provided at the front of the vehicle body.

The reaping pre-processing section F is constructed as shown in FIGS. 1 to 3.

That is, the platform 10 is connected to the vehicle body below the driving section D so as to be able to be driven up and down by a hydraulic cylinder 11, and the grain culm locking pawl moves upwardly toward the rear of the vehicle body. A pair of left and right forced weeding devices 1 that forcibly separate the grass into objects to be reaped and objects not to be reaped while raising the standing grain culm.
3. A pulling reel 14 for the grain culms to be harvested, a reaping device 15 that cuts the grain culms from the pulling reel 14 and the forced weeding device 13, and a reaping device 15 that collects the reaped grain culms to the center side in the left-right direction of the vehicle body and moves to the rear side of the vehicle body. A rotary auger 16 that sends out grain culms from the auger 16 to the threshing section A, and a chain conveyor 17 that transports the harvested grain from the auger 16 toward the rear of the vehicle body are attached to the platform 10. Storage part G for spare clipper type cutting blades of the reaping device 15
is formed in a portion of the platform 10 located below the auger 16. The mounting arm 35 of the pulling reel 14 is attached to the platform 1.
0 so that it can be driven and moved vertically, and the height of the pulling reel 14 relative to the grain culm can be changed and adjusted by swinging the reel 14.

The transmission system for the forcible weeding device 13, the reaping device 15, the auger 16, and the chain conveyor 17 is configured by disposing the drive shaft 18 of the vehicle body concentrically with the swing axis _P1 of the platform 10. A belt-type continuously variable transmission device 21 is connected to a sprocket shaft 20 on the starting end side of the chain conveyor 17.
A transmission shaft 22 is provided concentrically with the swing axis of the pulling reel 14, and the transmission shaft 22 and the pulling reel drive shaft 23 are interlocked with each other by a belt. and the auger drive shaft 24 are interlocked with a belt, and the auger drive shaft 24
The auger drive shaft 24 and the input shaft 25a of the drive mechanism 25 with a reversing mechanism of the forced weeding device 13 are interlocked with each other by a belt.

The continuously variable transmission 21 is configured to be operated by a fluid pressure cylinder 26, and the cylinder 2
6 and the pulley diameter changing operation member 2 of the continuously variable transmission 21
A volume 29 is interlocked with the interlocking swing member 28 connected to the drive unit 7 to detect the rotational speed of the reel 14 by adjusting the amount of swing thereof. A volume 32 that detects the driving speed of the traveling device 8 by the amount of operation is linked to the type operation lever 31, and both volumes 29, 32 and the electromagnetically operated control valve V for the cylinder 26 are connected to each other. The valve V is linked by a control circuit 33 that automatically operates the valve V based on the detection results of 29 and 32, and as the vehicle speed changes, the pulling reel 14 synchronizes to a rotational speed that matches the vehicle speed. It is designed so that it will be done.

The platform 10 has the chain conveyor 17 and the pulling reel 14 attached thereto, and is configured to be narrower than the vehicle body, and includes a proximal platform portion 10a connected to the vehicle body, the forced weeding device 13, the reaping device 15, and the auger. 16 is attached, the transmission shaft 22 is configured to be wider than the vehicle body, and the transmission shaft 22 is attached to the base end platform portion 10a.
and a distal end platform portion 10b connected to be vertically swingable around a coaxial core.
In other words, the reaping pre-processing section F is divided into a base end portion Fa that is connected to the vehicle body and configured to be narrower than the vehicle body, and a distal end portion Fb that is connected to the base end portion Fa so as to be vertically swingable. It has been done. A fluid pressure cylinder 34 as an example of a drive operation mechanism for vertically swinging the distal end portion Fb with respect to the proximal end portion Fa is attached to the distal end platform portion 10b.
and the proximal platform portion 10a. In addition, when the vehicle body swings back and forth significantly, such as when crossing a ridge, or where the width is narrower than the pre-harvesting section F, such as a bridge with a handrail, and an obstacle H is erected at the end. When passing through, as shown in FIGS. 4 and 5, the pre-reaping treatment section F is bent at the waist with the distal end portion Fb raised relative to the raised proximal end portion Fa, and the distal end platform is The portion 10b is raised high so as not to collide with the ground or an obstacle H when traveling.

In summary, the present invention, in the above-mentioned combine harvester, divides the reaping pre-processing section into a proximal end section that includes the conveyor and is connected to the vehicle body, and a distal end section that includes the rotary auger. At the upper side of the divided portion, the distal end portion is pivoted to the proximal end portion and is configured to be vertically swingable around the pivot axis; The device is characterized by being provided with a drive operation mechanism for vertically swinging the portion relative to the base end side portion.

In other words, even when the vehicle body swings back and forth significantly, such as when going over a ridge, the pre-reaping treatment section F is placed in a bent position where the distal end portion Fb is raised relative to the raised proximal end portion Fa. For this reason, even though the height at which the proximal end portion Fb can be lifted is limited due to the contact with the boarding section D located above, the distal end portion Fb can be lifted high and its height is limited. It is now possible to drive safely while minimizing collisions with the ground.

Incidentally, although reference numerals are written in the structure of the claims for utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such markings.

[Brief explanation of the drawing]

The drawings show an embodiment of the combine harvester according to the present invention, FIG. 1 is a partially cutaway side view, FIG. 2 is a plan view,
FIG. 3 is a transmission system diagram, FIG. 4 is a side view of the vehicle in a running state, and FIG. 5 is a rear view of the vehicle in a running state. 16... Rotating auger, 17... Conveyor, 34
... Drive operation mechanism, A ... Threshing section, D ... Driving section, F ... Pre-reaping processing section, Fb ... Tip side part,
Fa...Proximal part.

Claims (1)

[Scope of utility model registration request] a threshing section A configured to supply the entire harvested grain culm;
And, for the vehicle body equipped with the boarding and driving section D,
The planted grain culms are reaped and the harvested grain culms are transferred to the threshing section A.
A reaping pre-processing section F is connected to the lower part of the driving section D so as to be operable to drive vertically, and a rotating auger 16 collects the reaped grain culms in the center in the left-right direction of the vehicle body and sends them out toward the rear side of the vehicle body. , a combine harvester in which a conveyor 17 for conveying grain culms supplied from the rotary auger 16 toward the threshing section A side is provided in the pre-harvesting processing section F; 17 and connected to the vehicle body, and a distal end portion Fb including the rotary auger 16, and at the upper side of the divided portion, the distal end portion Fb is connected to the vehicle body. The distal end portion Fb is pivotally supported relative to the proximal end portion Fa and is configured to be vertically swingable around the pivot axis, and the distal end portion Fb is vertically swingable relative to the proximal end portion Fa. Drive operation mechanism 34
A combine harvester characterized by being equipped with.