JPH0732644B2 - Suspension device of harvesting part in combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a lower end side of a mowing part pivotally supported so as to rotate about an upper end side mounted on an upper part of a front side of a machine body. The present invention relates to an improvement of a suspension device of a mowing part in a combine in which a rear part is suspended by a pantograph-shaped suspension mechanism which is installed so as to span between a rear part of a lower end side thereof and a front end part of a body.

[Prior Art] The combine A is mounted on the front side of the machine body a so that the mowing section b mounted to be movable up and down is normally formed with the upper end of the mowing section b as shown in FIG. The upper end portion 10a of the reaping main pipe 10 is pivotally supported by a shaft-shaped cylindrical conductive case c mounted on the upper part of the front side of the machine frame 2 of the machine body a.
Is mounted so that the lower end side of the mowing part b can freely move up and down with the turning fulcrum as a fulcrum, and between the rear part of the lower end side of the mowing part b and the lower part of the machine frame 2 on the front end side of the machine body a. A suspension mechanism 3 in which a front link 30 and a rear link 31 that are framed in a ladder shape are connected by a connecting shaft 32 so as to be bent and rotatably assembled and assembled in a pantograph shape, is arranged so as to span, and the suspension mechanism is arranged. 3, the outer end side of the rear link 31 is pivotally connected to the front end of the machine frame 2 of the machine body a by the connecting support shaft 4, and the outer end side of the front link 30 is connected by the connecting support shaft 5 to the lower end side of the mowing part b. By pivotally connecting the rear part to the rear part, the rear part on the lower end side of the mowing part b is suspended and stably supported by the pantograph-like suspension mechanism 3, and the above-described rotation fulcrum of the mowing part b is supported. Barrel transmission case c
For vertical rotation around the center, the hydraulic cylinder 8 is installed between the front link 30 or the rear link 31 of the pantograph-shaped suspension mechanism 3 and the machine frame 2, and the hydraulic cylinder 8 is
The circuit of the hydraulic pump communicating with it is controlled by a control valve mounted on the machine body a to be expanded and contracted, whereby the suspension mechanism 3 is expanded and contracted for rotation.

The suspension mechanism 3 that supports the rear portion of the lower end of the mowing section b is located in the center of the left and right sides of the mowing section b, as shown in FIGS. 2 and 3. On the lower surface side of the harvesting main pipe (10), the harvesting main pipe (10) is installed so as to extend to both left and right sides of the harvesting main pipe (10).

[Problems to be Solved by the Invention] By the way, in the combine A, the cutting main pipe is used.
The feed chain of the threshing section d for removing the grain culms cut by the cutting blade mechanism 12 mounted on the mowing frame 11 connected to the lower end of 10
Mowing grain culm transporting device for transporting toward the starting end of 60
Is arranged at an upper right position of the cutting main pipe 10. Therefore, when the grain culm transported by the harvested grain culm transport device e is a long culm, the grain culm to be transported is The root side of the plant protrudes downward from the harvested grain culm transporting device e for a long time, so that the suspension mechanism 3 comes into contact therewith to receive transport resistance, and the posture of the grain culm is disturbed or stagnated. There is a problem that the straw fragments falling from the grain culm are entangled with the suspension mechanism 3 and accumulated, which causes an obstacle in the transportation path of the grain culm.

The present invention has been made in order to solve this problem, and the suspension at the rear of the lower end of the mowing part b mounted on the front side of the machine body a is mowed by the mowing blade mechanism 12 of the mowing part b. An object of the present invention is to provide a new means for enabling a grain culm to be carried by the harvested grain culm transporting device e toward the starting end portion of the feed chain 60 of the threshing part d without causing any trouble. To do.

[Means for Solving the Problem] In the present invention, as a means for achieving this object, the upper end side is pivotally supported so as to rotate about a rotation fulcrum provided at an upper portion on the front side of the machine body. In the suspension device of the mowing part in the combine, which suspends the rear part of the lower end of the mowing part on a pantograph-like suspension mechanism arranged so as to span between the rear part of the lower end and the front end of the machine body,
The pantograph-shaped suspension mechanism is arranged on the left side of the mowing main pipe of the mowing section when viewed from the front of the machine body, and is installed over the rear end of the mowing section and the front end of the machine body. The present invention provides a suspension device for a mowing section in a characteristic combine harvester.

Example Next, an example will be described in detail with reference to the drawings. The reference numerals used in the drawings are the same as those used in the conventional means for components having the same effect.

FIG. 4 is a side view in which the latter half of the combine A embodying the present invention is omitted. In FIG. 4, a is a machine body, b is a mowing section mounted on the front side of the machine body a, and c is a mowing section b. A conductive case whose upper end is pivotally supported, d is a threshing section, e is a corn culm conveying device, and 3 is a suspension mechanism.

The machine body a is an ordinary one that is driven by left and right traveling devices 20 and 20 (one of which is omitted in the drawing) mounted on a machine frame 2.

The mowing part b is integrally connected to the mowing frame 11 at the lower end of the mowing main pipe 10 which also serves as a conductive case accommodating the transmission mechanism, and the mowing frame 11 is provided with the mowing blade mechanism 12.
It is a conventionally known one in which a divider 13, a scraping device 14, a grain culm raising device 15, etc. are supported, and a cutting main pipe thereof.
An upper end portion 10a of 10 is mounted on a shaft-shaped conductive case c which is horizontally installed on the upper part of the front side of the frame 2 of the machine body a. I am doing it.

The threshing part d is a conventionally known self-throwing type threshing device, and the feed chain 60 pulled to the outer surface side thereof has a front-back direction (first position) on the right side surface of the machine body a as shown in FIG. The machine body a
It is mounted on the upper surface of the frame 2.

The harvested grain culm transporting device e is a stock source transfer chain 70 that holds and transports the grain stalks of the grain stalks harvested by the harvesting mechanism 12 of the harvesting section b.
And a tip conveying device 71 for conveying while holding the tip side of the grain stem with a scraping lug, and a supporting machine frame 72
As shown by the chain line in Fig. 5, the scraping device 14 ・
It is obliquely arranged from above the lower end of the cutting main pipe 10 where the cut culms are collected at 14 toward the starting end of the feed chain 60 of the threshing part d.

The suspension mechanism 3 has a front link 30 as shown in FIG.
The rear link 31 and the rear link 31 are fitted to the left and right connecting shafts 30 fixed to the inner end of the front link 30 and the left and right shaft cylindrical portions 33 fixed to the inner end of the rear link 31 so that the center of the connecting shaft 32 It is assembled into a pantograph shape that freely bends and rotates freely and expands and contracts, and the reaping section side suspension support section 34 is formed and installed on the outer end side of the front link 30 thereof in the form of a left and right axial tube. On the outer end side of the rear link 31, a body-side suspension support portion 35 is formed by being formed in a left-right axial cylinder shape and installed.

The suspension mechanism 3 is, as shown in FIG. 5, a harvesting main pipe 10 of a harvesting section b mounted on the front side of the machine body a.
On the left side, the rear part of the lower end of the mowing part b and the body a
Of the machine body side suspension support portion 35 provided on the outer end portion of the rear link 31 of the machine body a.
Of the gear box GB mounted on the front end side of the frame 2 of the above, is connected to the supporting frame 40 mounted on the front side of the gear box GB via the connecting support shaft 4, and is provided on the outer end side of the front link 30. The part-side suspension support portion 34 is welded and fixed to the bracket 50 provided on the rear surface side of the lower end portion of the cutting main pipe 10 by welding the right end portion and the left end side of the bracket 51 provided on the left end side of the harvesting frame 11. The rear end of the lower end of the mowing part b is suspended and supported by pivotally supporting the connecting support shaft 5 fitted in the 510.

Reference numeral 8 is a hydraulic cylinder for vertically moving the cutting unit b. The base end side of the cylinder 80 of the hydraulic cylinder is pivotally connected to the front end of the frame 2 of the machine body a, and the tip end side of the rod 81 which moves in and out is the above-mentioned cutting main unit. By axially connecting to a bracket 50 provided on the rear surface of the lower end of the pipe 10, the front end of the machine body a and the cutting main pipe
It is installed over the lower end of 10 and is connected to the pressure oil line of the hydraulic pump mounted on the machine body a, and the control valve provided in the pressure oil line is operated. It expands and contracts with.

In the illustrated embodiment device, 512 is a connecting plate fixed to the mowing frame 11 so that the position of the shaft cylinder portion 511 of the bracket 51 provided on the left end side of the mowing frame 11 can be adjusted.
513 is a tightening bolt that connects the bracket 513 and the bracket 51 so that the displacement in the left-right direction can be adjusted.

The embodiment apparatus configured as described above operates as follows.

On the front side of the machine body a, a mowing section b mounted so as to vertically move around a conductive case c that serves as a rotation fulcrum, and a lower end side of the mowing section b in order to prevent lateral shaking and bending of the mowing section b. The suspension mechanism 3 for suspending the rear part is arranged on the left side of the mowing main pipe 10 of the mowing part b, and is installed between the rear part on the lower end side of the mowing part b and the front end part of the machine body a. Therefore, the suspension mechanism 3 was removed from the right side of the harvesting main pipe 10 provided with the harvested grain culm conveying device e that conveys the harvested grain culm toward the starting end of the feed chain 60 of the threshing section d. State.

Therefore, even if the grain culm transported by the harvested grain culm transporting device e is a long culm, the root side of the grain culm is smoothly directed to the starting end of the feed chain 60 of the threshing part d without contacting the suspension mechanism 3. So that they are transported.

[Effects of the Invention] As described above, in the suspension device for the mowing part in the combine according to the present invention, the mowing part is pivotally supported so that its upper end side is rotated about the rotation fulcrum provided on the upper part of the front side of the machine body. In the suspension device of the mowing part in the combine, which suspends the rear part of the lower end side of the lower part of the rear part of the rear part of the lower part of the rear part and the front end of the machine body in the pantograph-shaped suspension mechanism. In the front view of the machine body, the suspension mechanism of is arranged on the left side of the mowing main pipe of the mowing section, and is installed over the rear end of the mowing section and the front end of the machine body. Therefore, the suspension at the rear of the lower end of the mowing section mounted on the front side of the machine is mowed by the cutting blade mechanism of the mowing section and directed toward the starting end of the feed chain of the threshing section by the mowing culm transfer device. There is a problem in the grain culms being transported. You can do it without tightening.

[Brief description of drawings]

FIG. 1 is a side view of a suspension device for a mowing part in a conventional combine, FIG. 2 is a plan view of the same as above, FIG. 3 is a plan view of another example of the same, and FIG. 4 is a mowing part in a combine according to the present invention. FIG. 5 is a side view of the suspension device of FIG.
The figure is a partially cutaway plan view of the same suspension system. Explanation of Drawing Symbols A ... Combine, GB ... Gear box, a ... Machine body b ... Mowing section, c ... Conducting case, d ... Threshing section e ... Mowing grain culm conveying device, 10 ... Mowing main pipe 10a ... Upper end, 11 ... Mowing frame, 12 ... Cutting blade mechanism 13 ... Divider, 14 ... Scraping device, 15 ... Grain raising device, 2 ... Machine frame (frame), 20 ... Traveling device, 3 ... Suspension mechanism, 30 ... Front link, 31 ... Rear link, 32 ... Connection shaft 33 ... Shaft cylinder part, 34 ... Mowing part side suspension support part 35 ... Airframe side suspension support part, 4 ... Connection support shaft, 40 ... Support machine frame 5 ... Connection support shaft, 50/51 … Bracket, 510… Shaft cylinder part 512… Tightening bolts, 513… Connection plate 60… Feed chain, 61… Mounting machine frame, 62… Connection shaft 7… Bracket, 70… Stock transfer chain 71… Tip transfer device, 72 ... Support frame, 8 ... Hydraulic cylinder 80 ... Cylinder, 81 ... Rod

Claims (1)

[Claims] 1. A rear end of a lower end of a reaping part pivotally supported so as to rotate about an upper end of a fulcrum provided at an upper part of a front side of an airframe, a rear part of the lower end and a front end of the airframe. In the suspension device of the mowing unit in the combine that is suspended by the pantograph-shaped suspension mechanism arranged so as to be bridged between the two, the pantograph-shaped suspension mechanism is A suspending device for a mowing part in a combine, which is arranged on the left side and bridged between a rear part on a lower end side of the mowing part and a front end part of the machine body.