JPH0537020U - Cutting blade drive case - Google Patents

Abstract

(57) [Abstract] [Purpose] To facilitate the maintenance of gears, shafts, etc. installed in the cutting blade drive case in the power transmission path from the combine mission case to the mowing device. [Structure] The cutting blade drive case is divided into two parts, and 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 cutting blade drive case is covered with a lower case lid, and the lower part of the first raising shaft having a bevel gear fixed to the lower part is supported by the lower case lid.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a structure for facilitating the maintenance of shafts, gears, etc. incorporated in a cutting blade drive case in a combine.

[0002]

[Prior Art]

 In order to drive the combine harvester, power is transmitted from the PTO shaft of the mission case to the cutting blade, sprocket, etc. through the bevel gear and transmission shaft that are installed inside the harvesting frame that doubles as the transmission case. However, the structure of the cutting blade drive case in this cutting frame is, as shown in FIGS. 8 and 9, that the cutting transmission shaft 2 is horizontally mounted in the cutting blade drive case 1 that is horizontally installed at the bottom of the cutting frame. Power is transmitted from the mission case to the cutting transmission shaft 2 and the cutting blade drive shaft 5 is driven through the bevel gears 3 and 4, and the bevel gear 6 meshed with the bevel gear 4 raises the transmission shaft 7 to raise the raising shaft. The power is transmitted to the bevel gear 10 on the shaft 9 by the first raising via the bevel gear 8 on the transmission shaft 7.

[0003]

[Problems to be solved by the device]

 However, when assembling the first raising shaft 9, the raising shaft case 11 containing the first raising shaft 9 fitted with the bevel gear 10 is first raised after being raised in the mowing drive case 1 and the transmission shaft 7 is mounted horizontally. They were fixedly mounted on the mowing drive case 1 and assembled by the stacking method. Therefore, it is necessary to disassemble the bevel gear or the like if foreign matter is caught in it, or if the gear is missing, etc., but for maintenance of the first raising shaft 9 part, etc., it is necessary to disassemble from the top of the mowing device The mowing power transmission shaft 2, bevel gear 3, etc. had to be lifted up and the power transmission shaft 7, the blade cutting drive shaft 5, etc. had to be removed before maintenance could be performed, so it was very troublesome and time consuming. .

[0004]

[Means for Solving the Problems]

 In order to solve such a problem, the present invention comprises a cutting blade drive case, which is arranged in a power transmission path from a transmission case to a mowing device, in which the cutting blade drive case is divided into two parts. The lower part of the vertical drive case is fixed to one of the upper surfaces, and the bottom part of the cutting blade drive case below it is covered with the lower case lid, and the lower part of the first raising shaft with the bevel gear fixed to the lower part is attached to the lower case lid. I supported it.

[0005]

【Example】

 The problems to be solved and the means for solving 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. 2 is a front view of the combine, and FIG. 3 is a side view of the cutting unit, FIG. 4 is a side view of the cutting drive case, FIG. 5 is a rear view of the same, FIG. 6 is a drive transmission diagram of the cutting unit, and FIG. 7 is a plan view of the cutting unit.

To explain the overall structure of the combine in FIGS. 1 and 2, the machine body frame 15 is placed on the crawler type traveling apparatus 14, and the operator's cab 16 is provided on the front right side of the machine body frame 15 and the granule is provided on the rear side thereof. A tank 17 is arranged, a sorting device is arranged on the left side of the machine frame 15, a threshing device is arranged thereon, and a feed chain 20 for feeding a grain culm to a handling barrel 19 of the threshing device is arranged on a side portion. ..

A mowing device A is arranged in front of the threshing device. In the mowing device A, as shown in FIGS. 3 and 7, the mowing frame also serves as a transmission case for driving the mowing device. The rear end of the post-pruning drive case 21 is pivotally supported at the center of rotation when moving A up and down, and the transmission shaft case 22 connected to the cutting drive case 46 of the present invention is laterally provided at the front end of the post-pruning drive case 21. , Projecting the weeding frames 23, 23 ... In front of the transmission shaft case 22, and fixing the weeding frames 23, 23. The plates 24, 24 ... Stand up by raising cases 25, 25 ... Standing rearward, and the raising case 25 is wound with a chain protruding from the tine. Reference numeral 26 in FIG. 1 is a divider that causes lodging culms.

A cutting blade 29 is laterally provided at the base of the weeding frame 23, a scraping wheel 30 is disposed above the cutting blade 29, and a lower conveying device 31 is provided above the scraping wheel 30 and above the scraping wheel 30. A scraping belt 32, an upper conveying device 33 above the scraping belt 32, and a vertical conveying device 34 above the lower portion of the lower conveying device 31 are arranged to inherit the grain culm roots to the feed chain 20. . An auxiliary carrier device 35 is arranged at the rear of the upper carrier device 33.

As shown in FIG. 6, these drive configurations transmit power from an engine to a pulley on an input shaft 37 of a mission case 36 to shift gears to an HST type transmission or gear in the mission case 36. The 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.

From the pulley fixedly attached to the PTO shaft 38, it is transmitted to the input pulley 41 on the reaping input shaft 40 via a belt, and via the bevel gear 28 on the reaping input shaft 40, to the upper transfer device 33R on the right side. The auxiliary transport device 35 is driven, and is transmitted from the bevel gear 42 on the reaping input shaft 40 to the transmission shaft 43 in the post-pruning drive case 21, and is conveyed from the bevel gear 44 provided in the middle of the transmission shaft 43 to the conveyance drive shaft. The lower right conveying device 31R is driven via 72, and the vertical conveying device 34 is further driven via a bevel gear, and the scraping belt 32 and the scraping wheel 30 on the right side of the lower right conveying device 31R are driven.

Then, power is transmitted from the lower end of the transmission shaft 43 to the mowing transmission shaft 45 via a bevel gear, and through a gear 47 on the end of the mowing transmission shaft 45 installed in the mowing drive case 46 of the present invention. The cutting blade 29 is driven and transmitted to the first raising shaft 50 through the bevel gears 48 and 49, and through the bevel gears 51 and 52, the intermediate shaft 73, and the bevel gear that are fixedly installed in the middle of the first raising shaft 50. Is transmitted to the drive shaft 74, and the left upper conveyance device 33L and the lower left conveyance device 31L, and further the left lower conveyance device 31R, the left and central scraping belts 32 and the scraping wheels 30, and the central lower conveyance. The device 31M and the upper conveyance device 33M are configured to be driven. Then, from the upper end of the first raising shaft 50, a selective raising gear 53a or 53b, a second raising shaft 54, a bevel gear 55/56, and a third raising shaft 57 which is laid across the upper part of the case 25. The power is transmitted and the chain is rotated by raising it. Reference numeral 58 is a sprocket for driving the divider 26.

In such a drive configuration, the reaping drive case 46, which is the main part of the present invention, is composed of the left and right reaping drive cases 46L and 46R as shown in FIGS. The right side is connected to the transmission shaft case 22 that houses the reaping transmission shaft 45 with bolts, and the left side is fixed by the left reaping drive case 46L and bolts 61, 61 ... The cutting blade drive shaft 62 is laterally installed offset from the cutting transmission shaft 45, and the cutting blade drive shaft 62 meshes with the gear 47 fixedly mounted on the cutting transmission shaft 45. The power is transmitted through the cutting blade 29, the cutting blade 29 is driven, the left side of the mowing transmission shaft 45 is supported by the right mowing driving case 46R through the bearing 68, and the bevel gear 48 is fitted onto the end of the mowing transmission shaft 45. Being Bo It is fixed with a bolt 69.

Further, a lower case cover 64 is fixed to the bottom of the left reaping drive case 46L with bolts 65 to cover the lower opening, and an upper case 71 for housing the shaft 50 in the upper part is attached to the bolt 70. The lower case cover 64 supports the lower part of the first raising shaft 50 through the bearing 66, and the bevel gear 49 is fixed to the lower part of the first raising shaft 50. The bevel gear 49 is fixed to the upper part of the first raising shaft 50. The bevel gear 51 is fixed, and the upper end is connected to the upper first raising shaft 50a via the coupling 67.

With this configuration, when the bevel gears 48 and 49 are bitten or chipped, the bolt 65 is removed and the lower case lid 64 is removed downward. 50 can be pulled down for maintenance, and the left reaping drive case 46L can be removed by removing the bolts 70 and 61, so that the bevel gear 48 and gears 63 and 47 can be easily maintained. is there.

[0015]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, it has the following effects. That is, the cutting blade drive case can be easily disassembled, the bevel gear and the raising shaft can be easily replaced and maintained, and the work can be easily performed and the maintenance time can be shortened. It was.

[Brief description of 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 a reaper carrying section.

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 the reaping unit.

FIG. 7 is a plan view of a reaping unit.

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

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

[Explanation of symbols]

 A Cutting device 45 Cutting transmission shaft 46 Cutting blade drive case 49 Bevel gear 50 First raising shaft 64 Lower case lid 71 Vertical drive case

Claims (1)

[Scope of utility model registration request] 1. A cutting blade drive case arranged in a power transmission path from a mission case to a mowing device, wherein the cutting blade drive case is divided into two parts, and a vertical driving case is provided on one upper surface of the cutting blade drive case. A cutting blade drive characterized in that the lower part is fixed, the cutting blade drive case bottom part underneath is covered with a lower case lid, and the lower part of the first raising shaft with the bevel gear fixed to the lower part is supported by the lower case lid. Case.