JPS64737Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, the layout of a riding combine harvester is to mount a threshing device on one side of the machine and install a paddy processing section on the other side of the machine, taking into consideration the longitudinal balance of the machine. , which has a control section at the front, an engine at the rear, a counter case at the front of the paddy processing section, and a counter belt between the input pulley of the counter case and the engine pulley. However, since the counter belt becomes long, there is a drawback that the counter belt pulsates.

Furthermore, since the rotational direction of the engine is determined by standards, the lower side of the counter belt is on the tight side, and the upper side is on the loose side. Since the tension side is in a tensioned state, the number of tight pulleys can be reduced, and the tight pulleys can be supported by support arms erected on a strong machine stand nearby.

However, although the loose side requires a large number of tight pulleys, there is only a thin iron plate that constitutes the wall of the threshing device in the area where those tight pulleys should be supported, so it is unavoidable to support multiple tight pulleys. The lower part of the supporting member was fixed to the aircraft platform and the upper part was fixed to the aircraft wall, but when the tight pulley pulsated, the aircraft wall emitted a vibration noise that caused discomfort to the operator, causing serious problems. The aircraft had some drawbacks, such as damage to the aircraft wall.

The purpose of this invention is to improve the above-mentioned drawbacks.The present invention is equipped with a threshing device on one side of the machine, a paddy processing section on the other side, and a counter at the front of the paddy processing section. In the combine, a case is provided, an engine is provided at the rear, and a transmission device consisting of a belt extending between the engine and the counter case is provided along the side of the threshing device. A supporting member is diagonally fixed across the nearby machine stand or a member integral therewith, and a tight pulley that presses against the belt is pivotally supported on the supporting member directly or via an arm. It is something to do.

The embodiments shown in the drawings will be explained below.
1 is a traveling device consisting of a pair of left and right crawlers driven by front drive wheels 2, 2, and a threshing device 4 is mounted on one side of the machine base 3 at the top thereof,
A preprocessing device 5 consisting of a reaping device and a grain culm conveying device is installed at the front so that it can be raised and lowered, and on the other side of the machine base 3, a control section 8 consisting of an operation panel 6 and a seat 7 is installed in order from the front. , a paddy processing section 9 consisting of a grain tank 9a, bag hanging rods 9b, . . . and a pedestal 9c, and an engine room 10a housing an engine 10 are provided.

Further, at the rear of the grain tank 9a, a grain lifting cylinder 1 is installed upright from the transfer end of the first receiving gutter of the threshing device 1.
One belt 12a of the output pulley 12 of the engine 10 is connected to the threshing input pulley 13, and the front part of the other counter belt 14 is connected to a counter provided in the front part of the paddy processing section 9. It is hung on the input pulley 16 of the case 15, and the axle 2a is connected to the split pulley and the lower part of the counter case 15.
A continuously variable transmission belt 17a is stretched between the split pulley of the transmission case 17 having the transmission case 17.

The support member 21 that supports the tight pulleys 18, 19, 20 that tension the counter belt 14 is made of a square pipe, and a mounting bracket 22 welded to the front end of the support member 21 is fixed to the machine base 3, and the counter case 15 is The mounting bracket 25, which is screwed onto the mounting seat 23 that supports the grain lifting cylinder 11 with bolts 24, 24 and welded to the rear end, is connected to the receiving bracket 2 fixed to the middle part of the grain lifting cylinder 11.
6 is screwed with bolts 27, 27,
When viewed from the side, it has a bracing shape as shown in Figure 2.

Further, at the lower part of the vertical arm 28 welded to the middle part of the support member 21, there is a tight pulley 20 that presses against the lower surface of the tension side of the counter belt 14.
A tight pulley 19 is pivotally supported on the upper part, which presses against the lower surface of the loose side of the counter belt 14.
A tight pulley 18 pivotally supported near the rear of the support member 21 is pressed against the upper surface of the counter belt 14 on the loose side.

Further, a tension pulley 30 whose base is pivotally supported at the tip of the swinging arm 29 which is pivotally supported on the counter case 15 is pulled by a spring 31 and is pressed against the upper surface of the slack side of the counter belt 14.

Reference numeral 32 denotes a cleaning window provided in the machine wall 4a facing the receiving net 33 of the threshing device 4 and the swinging sorting body 34 installed in the sorting air passage extending from below to the dust sorting room, and the lid 35 is The engine base 36 is removably screwed onto the lower part of the engine 10 and is attached to a support seat 37 fixed to the machine base 3 via anti-vibration rubber 38.

In the combine harvester described above, the vibration isolating rubber 38 is damaged due to fluctuations in the load on the traveling device 1 or the threshing device 4.
The engine 10 supported by the machine base 3 via...
is pulled by the counter belt 14 and moves back and forth, so the long counter belt 14 does not pulsate, but the tight side is supported by the tight pulley 20, and the loose side is supported by the tight pulleys 18, 19 and tension pulley 30 from above and below. Pressure is applied to prevent the pulsation.

At that time, the tight pulley 18 has a mounting seat 23 and a grain lifting tube 1 which are integral with the machine base 3, which is a strong member at both ends.
The tight pulleys 18, 19, 20 are directly supported by a support member 21 welded to the support member 21, and the other tight pulleys 19, 20 are supported by an arm 28 that is integrated with the support member 21. can firmly support the machine wall 4a of the threshing device.
No chattering occurs.

In addition, when the handling chamber or the swing sorting body 34 is clogged and the lid 35 is removed to remove the clog, the tight pulleys 19 and 2 are removed as in the conventional case.
Since the upper part of the member supporting the pulley corresponding to 0 is not attached to the machine wall 4a above the cleaning window 32, it is possible to easily take out the clogged straw waste.

As mentioned above, the present invention is equipped with a threshing device on one side of the machine, a paddy processing section on the other side, a counter case at the front of the paddy processing section, an engine at the rear, and the threshing device. In this combine harvester, a transmission device consisting of a belt extending between the engine and the counter case is installed along the side of the rice processing section, and the grain lifting cylinder installed vertically in the paddy processing section, and the machine stand near the counter case or a member integral therewith. The support member is fixed diagonally with the support member, and the tight pulley that presses against the belt is pivotally supported on the support member directly or via an arm, so that the tight pulley is integrated with the strong members of the machine base and the grain lifting cylinder. This means that the belt is supported by a support member that can reliably prevent pulsation of the long belt extending from the front to the rear of the paddy processing section.

Moreover, since the support member is not attached to the machine wall of the threshing device made of thin iron plates as in the past, the machine wall does not vibrate even when the belt pulsates, and unpleasant vibration noise is transmitted to the operator. I have nothing to give.

In addition, there is a cleaning window for cleaning the inside of the machine in the part facing the paddy processing section of the threshing device, but since the upper part of the member supporting the tight pulley is not fixed to the wall of the threshing device, the inside of the machine is It is possible to easily remove straw debris etc.

[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 side view of the main parts, and FIG. 3 is a cross-sectional view taken along line AA in FIG. 3... Machine stand, 4... Threshing device, 9... Paddy processing section, 10
...Engine, 11...Grain lifter, 12...Engine pulley, 14...Counter belt.

Claims (1)

[Scope of utility model registration request] In a combine harvester having a threshing device mounted on one side of the machine base and a rice husk processing section on the other side, a counter case at the front of the rice husk processing section and an engine at the rear, and a transmission device consisting of a belt extending between the engine and the counter case along the side of the threshing device, a support member is fixed diagonally between a grain lifting tube erected in the rice husk processing section and the machine base near the counter case or a member integral with it, and a tight pulley that is in pressure contact with the belt is journalled on the support member directly or via an arm.