JPS642602Y2 - - Google Patents

Description

[Detailed Description of the Invention] Conventionally, a receiver that supports the pretreatment section so as to be able to swing up and down has been attached to a single horizontal shaft.

However, the pre-treatment section is heavy and extremely unstable as it swings up and down, and the cost is extremely high as the receiver is made of cast or forged metal for greater strength. At the same time, it also had disadvantages such as increased weight.

The present invention aims to provide a preprocessing part support device for a combine that can support a heavy preprocessing part so as to be able to swing up and down, has high stability, is lightweight, and can be obtained at low cost. A combine harvester in which a pre-processing part is pivoted to the front part of a threshing device mounted on a machine base with a horizontal axis so as to be able to swing vertically, and a rear part substantially parallel to the horizontal axis is attached to the front surface of the threshing device. Attach the support rod with multiple brackets,
A front support rod substantially parallel to the horizontal axis is fixed to the top of a plurality of columns erected at the front of the machine base, and the front support rod and the rear support rod are connected by at least a pair of receiving plates. However, the horizontal shaft is supported on these receiving plates.

The embodiment shown in the drawings will be explained below.1
is a threshing device mounted on a machine base 3 having a traveling device 2, and in front of it are a cutting body 4, a grain culm pulling body 5, a cutting blade 6, a raking wheel 7, a stock raking chain 8, and a stalk. Part raking belt 9, stock conveyor chain 10, panicle side conveyor belt 11
A pre-processing section consisting of a guide plate, etc. is provided.
The frame body of the pretreatment section is composed of a weeding guide frame 12 and a pretreatment main frame 13 containing a transmission shaft, and the upper end thereof is a support pipe 1 containing a horizontal shaft 14.
4a via a gear case so that it can swing up and down.

A pair of left and right brackets 16, 16 protruding directly below the supply plate 15 of the threshing device 1 is provided with a rear support rod (made of pipe) 1 approximately parallel to the horizontal axis 14.
7 is attached, and the horizontal shaft 1 is also attached to the upper part of the pair of left and right columns 18, 18 erected at the front of the machine stand 3.
A front support rod (made of pipe) 19 that is approximately parallel to 4 is welded to
As shown in the figure, it has become lower.

Further, as shown in FIG. 2, the rear support rod 17 and the front support rod 19 are welded to each other at intervals on the left and right by means of receiving plates 20, 20 made of iron plates having a recessed portion 20a in the upper part, and furthermore, the feed chain A connecting metal 22 is welded to the 21 side.

Furthermore, a support pipe 14a containing the horizontal shaft 14
are the recesses 20a, 20 of the pair of left and right receiving plates 20, 20.
a, and the presser feet 23, 23 are superimposed thereon, and then the screws 23', 23' are tightened to attach them.

24 is a link whose lower end is pivotally connected to the pretreatment main frame 13, and whose upper end is connected to the support column 18 by a link 25. A hydraulic cylinder 26 attached to the front end of the machine base 3 is connected to the link 25. Since the piston rods are substantially parallel to each other and connected to the link 24, the links 24, 25, the column 18, and the hydraulic cylinder 26 form a quadruple link.

Further, a stopper 27' that protrudes forward from the stay 18' between the pillars 18, 18 has a threaded portion that can move forward and backward, and its head is attached to a mounting bracket 27 that connects the piston rod of the hydraulic cylinder 26. When the welded rod 28 comes into contact with the welded rod 28, but when the hydraulic cylinder 26 is actuated to swing the pretreatment section up and down, the rod 28 is moved to the length of the stopper 27' as shown in FIG. 3 due to the four-link structure. Move back and forth in the direction.

In the above-mentioned apparatus, the receiving plate 20 supporting the horizontal shaft 14 can be used even when the pre-processing section is in a lowered working position or when the pre-processing section is pushed up by the hydraulic cylinder 26 when the machine is rotating or traveling on the road. ，
20 are both supported by the front support rod 19 and the rear support rod 17, so that the receiving plate 2 from the pretreatment section
The loads for 0 and 20 are respectively the front and rear support rods 1
7 and 19, and even if the aircraft tilts forward, backward, left or right, the preprocessing section will adapt in a stable state.

As described above, the present invention is a combine harvester in which a pre-processing section is pivoted to the front part of a threshing device mounted on a machine base with a horizontal axis so as to be able to swing up and down. A rear support rod is attached with a plurality of brackets, and a front support rod substantially parallel to the horizontal axis is fixed to the top of a plurality of columns erected at the front of the machine base, and the front support rod and the rear support rod are The rods are connected to each other by at least a pair of support plates, and the horizontal shaft is supported on these support plates, so that the left and right support plates are supported at two locations, front and rear, by the front support rod and the rear support rod, respectively. Therefore, the pre-processing section can be supported in a stable state at all times, horizontal vibration of the pre-processing section can be prevented as much as possible, and the left and right cutting heights can be made substantially uniform.

Moreover, since the load of the pre-treatment section on each receiving plate is distributed to the front and rear support rods, there is no need for the receiving plate to be made of cast or carved material as in the past, and it can be made of iron plate, which reduces the manufacturing cost. and weight can be significantly reduced.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
FIG. 1 is a side view of the combine, FIG. 2 is a perspective view of the main parts, and FIG. 3 is a side view of the lifting section. 1... Threshing device, 3... Machine stand, 13... Pretreatment main frame, 14... Horizontal axis, 16... Bracket, 17
... Rear support rod, 18 ... Pillar, 19 ... Front support rod, 20 ... Receiving plate.

Claims (1)

[Claims for Utility Model Registration] (1) In a combine harvester in which a pre-processing section is pivoted to the front part of a threshing device mounted on a machine base with a horizontal axis so as to be able to swing vertically, the A rear support rod approximately parallel to the axis is attached with a plurality of brackets, and a front support rod approximately parallel to the horizontal axis is fixed to the top of a plurality of columns erected at the front of the machine base. and the rear support rod are connected by at least a pair of receiving plates, and the horizontal shaft is supported on these receiving plates. (2) The pre-processing part support device for a combine according to claim 1, wherein the front support rod is lower than the rear support rod, and the support surface of the receiving plate is tilted forward.