JP2554592Y2 - Cutting blade drive case - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for facilitating maintenance of shafts, gears and the like provided in a cutting blade drive case in a combine.

[0002]

2. Description of the Related Art In order to drive a combine harvester, power is applied to a cutting blade, a sprocket, and the like from a PTO shaft of a transmission case via a bevel gear, a transmission shaft, and the like provided in a harvesting frame that also serves as a transmission case. As shown in FIGS. 8 and 9, the configuration of the cutting blade drive case in the cutting frame is such that the cutting power transmission shaft 2 is horizontally mounted in the cutting blade drive case 1 provided below the cutting frame. Power is transmitted from the transmission case to the mowing transmission shaft 2, the cutting blade drive shaft 5 is driven via the bevel gears 3, 4, and the power is transmitted from the bevel gear 6 meshed with the bevel gear 4 to the transmission shaft 7. The power is transmitted to the first bevel gear 10 on the shaft 9 via the bevel gear 8 on the transmission shaft 7.

[0003]

However, when assembling the first raising shaft 9, the first raising shaft 9 in which the bevel gear 10 is fitted is mounted on the mowing drive case 1 after the transmission shaft 7 is laid horizontally. The raising shaft case 11 in which is stored is fixed to the mowing drive case 1 and assembled by a stacking method. Therefore, it is necessary to disassemble a bevel gear or the like when a foreign substance is bitten or the gear is chipped, but it is necessary to disassemble the maintenance of the first raising shaft 9 from the upper part of the reaper. The cutting transmission shaft 2 and the bevel gear 3 were raised to remove the transmission shaft 7, the cutting blade drive shaft 5, and the like, so that maintenance and the like could not be performed. Therefore, it was very troublesome and time-consuming.

[0004]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention divides a cutting blade drive case into two parts in a cutting blade drive case disposed on a power transmission path from a transmission case to a cutting device. The lower part of the vertical drive case is fixed to one upper surface of the cutting blade drive case, the lower part of the lower blade drive case is covered with a lower case cover, and the bevel gear is fixed to the lower case cover at the lower part. The lower part of the first raising shaft is supported.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The problems to be solved and means to be solved of the present invention are as described above. Next, the embodiment shown in the attached drawings will be described. FIG. 1 is an overall side view of a combine, FIG.
3 is a front view, FIG. 3 is a side view of the reaper, FIG. 4 is a side view of the reaping drive case, FIG. 5 is a rear view of the reaper, FIG. 6 is a drive transmission diagram of the reaper, and FIG.

1 and 2, the entire structure of the combine will be described. A body frame 15 is mounted on a crawler type traveling device 14, an operator's cab 16 is provided on the right side in front of the body frame 15, and a Glen tank 17 is provided on the rear. And a sorting device on the left side of the machine frame 15 and a threshing device thereon, and a feed chain 20 for feeding grain culms to a handling drum 19 of the threshing device is provided on a side portion.

A mowing device A is disposed in front of the threshing device. As shown in FIGS. 3 and 7, the mowing frame of the mowing device A also serves as a transmission case for driving mowing. The rear end of the post-cutting drive case 21 is pivotally supported at the center of rotation when ascending and descending A, and the transmission shaft case 2 connected to the cutting drive case 46 of the present invention at the front end of the post-cutting drive case 21.
., And project the weeding frames 23, 23,.
3 ... fixed weeding plates 24, 24 ... at the front end, raised to the rear of the weeding plates 24, 24 ...
.. Are erected, and a chain with protruding tines is wound around the raising case 25. Reference numeral 26 in FIG. 1 denotes a divider that causes lodging culm.

A cutting blade 29 is provided laterally at the base of the weeding frame 23, a scraping wheel 30 is disposed above the cutting blade 29, and the lower conveying device 3 is disposed above the scraping wheel 30.
1. A scraping belt 32 is disposed above the upper conveyor, an upper conveyor 33 is disposed above the lower conveyor 32, and a vertical conveyor 34 is disposed above the lower conveyor 31. The structure is inherited. Further, an auxiliary transfer device 35 is disposed behind the upper transfer device 33.

As shown in FIG. 6, the power from the engine is transmitted to a pulley on an input shaft 37 of a transmission case 36, and the transmission is shifted to an HST transmission or a gear in the transmission case 36, as shown in FIG. Then, power is taken out from the PTO shaft 38, or the drive sprocket 39 is driven from the axle to drive the crawler type traveling device 14.

The pulley fixed to the PTO shaft 38 is transmitted to an input pulley 41 on a cutting input shaft 40 via a belt, and is connected to an upper conveying device 33R on the right side via a bevel gear 28 on the cutting input shaft 40. The conveying device 35 is driven, transmitted from the bevel gear 42 on the cutting input shaft 40 to the transmission shaft 43 in the post-cutting drive case 21, and transmitted from the bevel gear 44 provided in the middle of the transmission shaft 43 to the conveyance driving shaft 7.
The lower right transfer device 31R is driven via the lower right transfer device 31R via the bevel gear and the lower right transfer device 31R via the bevel gear.
The scraping belt 32 and the scraping wheel 30 on the right side of R are driven.

Power is transmitted from the lower end of the transmission shaft 43 to the cutting transmission shaft 45 via a bevel gear, and is transmitted through a gear 47 on the end of the cutting transmission shaft 45 provided in the cutting drive case 46 of the present invention. The cutting blade 29 is driven and transmitted to the first raising shaft 50 via the bevel gears 48 and 49, and the bevel gears 51.5 fixed to an intermediate portion of the first raising shaft 50.
2, transmitted to the drive shaft 74 via the intermediate shaft 73 and the bevel gear, and is transferred to the upper left transfer device 33L and the lower left transfer device 31
L, and further, the left and center scraping belt 32 and the scraping wheel 30, the central lower transport device 31M, and the upper transport device 33M are driven from the lower left transport device 31R. Then, the selectable gear 53a or 53b from the upper end of the first raising shaft 50, the second raising shaft 54,
The power is transmitted to the third raising shaft 57, which is raised above the case 25 via the bevel gears 55 and 56, and raised to rotate the chain. 58 is the divider 26
Is a sprocket for driving.

In such a drive configuration, the mowing drive case 46, which is a main part of the present invention, comprises left and right mowing drive cases 46L and 46R as shown in FIGS. 4 and 5, and the right side of the left mowing drive case 46R. Are connected by bolts to the transmission shaft case 22 that houses the cutting transmission shaft 45, and the left side is fixed by the left cutting drive case 46L and the bolts 61, 61. The blade drive shaft 62 is laterally offset from the cutting power transmission shaft 45, and the cutting blade drive shaft 62 is connected via a gear 63 on the cutting blade drive shaft 62 meshed with a gear 47 fixed on the cutting power transmission shaft 45. Power is transmitted to drive the cutting blade 29, and the left side of the cutting power transmission shaft 45 is connected to the right
The bevel gear 48 is externally fitted to the end of the mowing transmission shaft 45 and fixed by bolts 69.

A lower case cover 64 is fixed to the bottom of the left mowing drive case 46L with bolts 65 to cover the lower opening, and the upper part is a shaft case 7 in which the first raising shaft 50 is mounted.
1 is fixed by bolts 70, the lower case lid 64 supports the lower part of the first raising shaft 50 via a bearing 66, and the bevel gear 49 is fixed to the lower part of the first raising shaft 50, and the first raising part The bevel gear 51 is fixed to the upper part of the shaft 50, and the upper end is connected to the shaft 50a by the first first raising via the coupling 67.

With such a configuration, if the bevel gears 48 and 49 are bitten or chipped, the bolt 65 is removed and the lower case cover 64 is removed downward, whereby the bevel gear 4
9 and the first raising shaft 50 can be pulled down to perform maintenance, and if the bolts 70 and 61 are removed, the left mowing drive case 46L can be removed, and the bevel gear 48 and the gears 63 and 47 can be easily formed. You can do maintenance.

[0015]

[Effect of the Invention] The present invention is constructed as described above, and has the following effects. In other words, the cutting blade drive case can be easily disassembled, and replacement and maintenance of the bevel gear, the raising shaft, etc. can be easily performed,
The work could be done easily and the maintenance time could be shortened.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a front view of the same.

FIG. 3 is a side view of the reaper carrying unit.

FIG. 4 is a side view of a mowing drive case.

FIG. 5 is a rear view of the same.

FIG. 6 is a drive transmission diagram of a mowing unit.

FIG. 7 is a plan view of a mowing part.

FIG. 8 is a side view of a conventional mowing drive case.

FIG. 9 is a rear view of the conventional mowing drive case.

[Explanation of symbols]

 A cutting device 45 cutting drive shaft 46 cutting blade drive case 49 bevel gear 50 first raising shaft 64 lower case cover 71 vertical drive case

Claims (1)

(57) [Scope of request for utility model registration] 1. A cutting blade drive case disposed in a power transmission path from a transmission case to a cutting device, wherein the cutting blade drive case is divided into two parts, and a vertical drive case is provided on one upper surface of the cutting blade drive case. A cutting blade drive, wherein the lower part is fixed, the lower part of the cutting blade drive case below is covered with a lower case lid, and the lower part of the lower case cover supports a lower part of a first raising shaft with a bevel gear fixed to the lower part. Case.