JPH0127636Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, grain culms harvested by a reaping device are fed horizontally to one side of the machine using an ear side conveyor and a stock side conveyor, then converted to vertical feed and supplied to a threshing device. It is already known that such a combine harvester has a guide member protruding from the back side of the grain culm pulling body on one side of the machine body directed toward the turning section on the side of the ear side conveyor.
Because there was a gap between the rear end of the guide material and the outwardly curved front end of the guide rod installed opposite to the ear side conveyance belt, the flow of grain culms was uneven, and the ear side conveyance was difficult. When the handling depth is adjusted by vertically tilting the body and the stock carrier around the rear, the gap is further enlarged, causing grain culms to become clogged or leak.

The present invention is an attempt to improve the above-mentioned drawbacks, and includes a structure in which the grain reaping device and the threshing device are tilted vertically centering on the rear part, and the grain feed is converted to vertical feed at the end of the front transverse feed. In a combine harvester equipped with a culm conveying device, the grain side conveying body of the grain culm conveying device is provided with a conveying belt with projections, and a rotating part that runs along the vertical conveying path and converts the front end from the horizontal conveying to the vertical conveying. A guide plate is installed on the back side of the grain culm raising body located in front of the vertical feed passage, and the rear part is along the front part of the guide rod, and upper and lower holes bored in the guide plate are provided. It is characterized in that the front end of the guide rod is inserted into the long hole in the direction so as to be movable up and down.

The embodiment shown in the drawings will be explained below.1
1 is a threshing device mounted on a machine platform 3 having a traveling device 2, and in front of it, a reaping device 4 and a grain culm conveying device 5 are provided. Culm raising body 7..., cutting blade 8, and raking wheel 9
..., and the stock raking chains 10, 10 stretched from above the raking wheels 9, 9 on both sides in an eight-shaped shape that becomes narrower at the rear.
, a raking belt with lugs 11..., a pair of left and right upper raking bodies 12, 12, and a horizontal conveyance chain 13 that transports the grain culms that have been raked and cut from the raking passage a on the right side to the left side. It is configured.

Further, the grain culm conveying device 5 includes a conveying chain 14
Stock carrier 1 with clamping rails installed on the vertical feed section of
5, and an ear-side conveying body 18 in which a guide rod 17 is disposed oppositely to the vertical feeding portion of a conveying chain 16 with a locking pawl at an interval approximately equal to the length of the locking pawl.
4 and the front part of the transport chain 16 with locking claws are both formed into a transverse feeding part, and these transverse feeding parts are continuous with the vertical feeding part at the rotating part, and the front end of the guide rod 17 is formed into a horizontal feeding part. It is curved along the circular locus of the tip of the locking pawl 16a.

Furthermore, the grain culm conveying device 5 has a horizontal shaft 19 at the rear.
It tilts up and down around the center, thereby adjusting the handling depth.

Reference numeral 20 denotes a guide frame plate fixed to the back surface of the intermediate grain culm pulling body 7, and both outer surfaces and the rear surface serve as guide surfaces, and the rear guide surface follows the movement locus of the tip of the locking claw 16a. There is.

On the back side of the grain culm pulling body 7 on the side of the lateral feed end of the ear-side conveyor 18, the lower part is attached on the upper raking body 12, and a guide plate 21 is installed along the outside of the left raking passage b. The front part is fixed, and the guide plate 21
The rear part of the guide rod 17 is bent along the outside of the curved part of the front end of the guide rod 17, and the front end of the guide 17 is loosely fitted into a long hole 22 bored in the bent part so as to be able to move up and down. .

In the above-mentioned device, the grass is divided by the weeding unit 6,
The grain culm raised by the grain culm lifting body 7... is moved to a raking belt 11 with a lug, a raking ring 9... a raking chain 10, 1
0. Grain culms are harvested by the cutting blade 8 while being raked by the upper raking bodies 12, 12, and the grain culm raked from the raking passage a is transferred to the lateral conveyance chain 13 with the portion closest to the plant base.
The immediately upper part of the grain is fed laterally by the front part of the conveying chain 14, and the part near the ear part is laterally fed by the front part of the conveying chain 16 with locking pawls, and the harvested grain is raked from the raking passage b. The upper part of the culm passes between the guide frame board 20 and the guide plate 21 and merges with the grain culm that has been transported laterally just before the conveyance circuit.

At this time, since the front end of the guide rod 17 is loosely fitted into the elongated hole 22 of the guide plate 21, their guide surfaces become substantially continuous, and the conveying direction is changed while merging together without difficulty.

Even if the grain culm conveying device 5 is tilted up and down around the rear center to adjust the handling depth, the front end of the guide rod 17 remains inserted into the elongated hole 22 and moves up and down relative to the guide plate 21. The succession guidance relationship is maintained.

The grain culms that have merged in this way are transferred to the ear side conveyor 18
The ears are fed vertically by the stock head conveyor 15 and inserted into the supply port of the threshing device 1, and the stock head portion is transferred to the feed chain 1a and the peg rail 1b for threshing processing.

Further, the guide rod of the conventional ear-side conveying body 18 has had its front end curved outward near the terminal end of the rotation locus of the locking pawl to transport grain culms from the raking path b sideways. Since the grain culm was made to join the grain culm at the turning path section, the grain culm that had been side-fed was changed in the direction of conveyance at the turning section at the end of the traversal feed, and at the same time was subjected to centrifugal force, causing its posture to be disturbed. Since the grain culms in the raking passage b join the grain culms in a disordered state from a different direction, the disorder of the grain culms further increases, but in this example, the grain culms from the raking passage b are in an orderly manner. It merges with the grain culm that has been fed laterally, and in the turning section, the guide rod 17 follows the turning locus of the locking claw 16a.
The grain can be transported in an orderly manner because it is guided by the curved part of the grain.

As described above, the present invention provides a combine harvester in which a grain culm conveying device is provided between the reaping device and the threshing device, which tilts vertically centering on the rear part, and converts to vertical feeding at the end of horizontal feeding at the front section. The ear-side conveying body of the grain culm conveying device is composed of a conveying belt with projections, and a guide rod that extends along the longitudinal conveying path and curves its front end along the rotating part that converts the horizontal conveying to the vertical conveying. , a guide plate whose rear part is along the front part of the guide rod is attached to the back side of the grain culm triggering body in front of the vertical feed passage, and the front end of the guide rod is inserted into the long hole in the vertical direction drilled in the guide plate. Since the grain culm is inserted so as to be able to move up and down, the grain culm can be smoothly transported without being disturbed or clogged in the moving section of the ear-side conveying body, and the grain culm can be raked into the moving section. The grain culm is continuously guided by the guide plate and the guide rod whose front end is inserted into the elongated hole, so that the grain culm does not fall out of the gap unlike the conventional one.

Moreover, even when the front part of the grain conveying device is raised and lowered to adjust the handling depth, the front end of the guide rod remains inserted into the elongated hole and moves up and down along the elongated hole. The guiding surface can always maintain a continuous state and can perform smooth guidance regardless of the length of the grain culm.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
FIG. 1 is a front side view of the combine, FIG. 2 is a plan view of the main parts, and FIG. 3 is a perspective view of the same. DESCRIPTION OF SYMBOLS 1... Threshing device, 4... Reaping device, 5... Grain culm conveyance device, 7... Grain culm pulling body, 15... Stock origin conveyance body, 16... Conveyance chain with locking pawl, 16a... Section Retaining claw, 17... Guide rod, 21... Guide plate, 22
...Long hole.

Claims (1)

[Scope of utility model registration request] In a combine that is provided with a grain culm transport device between a reaping device and a threshing device that tilts up and down centering on the rear part and converts to vertical feed at the end of lateral feed at the front part, the ear side of the grain culm transfer device The conveying body is composed of a conveying belt with projections, and a guide rod that runs along the longitudinal conveying path and is curved along the running part that converts the front end from the horizontal conveying to the vertical conveying. A guide plate whose rear part ran along the front part of the guide rod was attached to the back of a certain grain culm pulling body, and the front end of the guide rod was inserted into a vertically elongated hole bored in the guide plate so as to be able to move up and down. A grain culm transfer device in a combine harvester characterized by: