JPH0740821B2 - Mowing unit in combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a mowing unit in a combine.

(Prior Art) In the publicly known Japanese Patent Publication No. 58-11162, a traveling device is provided below the frame, an automatic feeding type threshing device is provided above the frame, and a mowing unit is provided in front of the frame. The reaping part has a horizontal pipe fixed to the lower end of a support pipe whose upper end is axially attached to the frame side, the rear lower end of the central support pipe rising forward in the center of the horizontal pipe, and the right rising front in the right side. The rear lower end of the supporting pipe and the rear lower end of the left supporting pipe rising forward to the left side are fixed respectively, and the central raising device is provided at the upper end of the central supporting pipe and the right raising device is provided at the upper end of the right supporting pipe. The left pulling device is fixed to the upper end of each of the support pipes, and a horizontal cylinder having a horizontal axis inside is provided at the upper end of each of the support pipes. I installed a star wheel Reaper in Nbain is described.

(Problems to be solved by the invention) The known one is a structure in which the left and right tip star wheels have a structure in which rotation is transmitted from a horizontal shaft provided at the upper end of each support pipe, as shown in FIG. Therefore, an expensive bevel gear is required for the horizontal axis, and a rotating shaft different from the shaft for stopping the star wheel shafts for the left and right tips is also required, which makes the configuration complicated and expensive.

The present application does not require a pair of bevel gears for transmission drive, and uses an inexpensive sprocket and chain transmission mechanism,
Moreover, the rotating shaft of the star wheel for the left and right tips is not required.

(Means for Solving the Problem) Therefore, according to the present invention, the traveling device 2 is provided below the frame 1.
An automatic feeding type threshing device 3 is provided on the upper part of the frame 1, and a mowing part 9 is provided in front of the frame 1, respectively.
The upper end 10 of the support pipe 11 of is axially attached to the frame 1 side,
The horizontal pipe 12 is fixed to the lower end of the support pipe 11, and the rear lower end of the central support pipe 14 that rises forward in the center of the horizontal pipe 12,
The rear lower end of the right supporting pipe 16a rising forward on the right side and the rear lower end of the left supporting pipe 16b rising front on the left side are fixed respectively, and the central pulling device 15 is attached to the upper end of the central supporting pipe 14 for the right supporting pipe. Right pulling device 1 on top of 16a
The left pulling device 18 is fixed to the upper end of the left side support pipe 16b, and the right pulling device 1 is provided in the right side support pipe 16a.
In the configuration in which the right rotation shaft 28 that rotates 7 is provided with the left rotation shaft 29 that rotates the left pulling device 18 inside the left support pipe 16b, respectively, the horizontal rotation is performed at an intermediate position above and below the right support pipe 16a. A right lateral case 39 protruding to the right lateral case 39 is provided, a right passive rotary shaft 35 is provided at the tip of the right horizontal case 39, and the right tip rotating star wheel 38 is fixed to the right passive rotary shaft 35.
The right sprocket 34 is fixed to 28 and the right passive sprocket 36 is fixed to the right passive rotary shaft 35.
A chain 37 is wound around the right passive sprocket 36 and a left lateral case 45 protruding laterally at an upper and lower intermediate position of the left support pipe 16b, and a left passive rotary shaft is provided at the tip of the left lateral case 45.
41 is provided and the left passive rotary shaft 41 is provided with a star wheel for left tip 44
The left sprocket 40 is fixed to the left rotary shaft 29, the left passive sprocket 42 is fixed to the left passive rotary shaft 41, and the chain 43 is wound around the left sprocket 40 and the left passive sprocket 42. This is the cutting unit for the combine harvester.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. 1 is a combine frame, 2 is a traveling device provided below the frame 1, and 3 is an automatic feeding threshing provided above the frame 1. A device 4 is a grain culm supply chain which is attached to the automatic feeding type threshing device 3 and is sent from the front to the rear. 5 is the grain culm supply chain 4
Corresponding to the grain culling rod, 6 is the automatic feeding type threshing device 3
, 7 is a fried cylinder for fried grain from the automatic feeding threshing device 3, 8 is a driver's seat provided in front of the grain tank 6, and 9 is a frame of the frame 1. It is a reaper provided in the front.

The reaper 9 is attached to the front end of a support pipe 11 having an upper end 10 axially attached to the frame 1 side, and a horizontal cylinder 12 is fixed to the lower end of the support pipe 11 at the center of the horizontal cylinder 12. Is provided with a front-side projecting cylinder 13 projecting to the front side, a center support pipe 14 inclined as shown in FIG. 5 is provided at the center of the front-side projecting cylinder 13, and a center raising device 15 is provided at the upper end of the center support pipe 14. Fixed support. Reference numeral 16a denotes a right side support pipe having a lower end portion provided on the right side of the horizontal tube 12 which is fixed to the horizontal tube 12 and is inclined so that a front end thereof rises, and a right pulling device 17 is fixed to an upper end thereof. Reference numeral 16b denotes a left side support pipe having a lower end portion provided on the left side of the horizontal tube 12 which is fixed to the horizontal tube 12 and is inclined so that a front end thereof rises, and a left pulling device 18 is fixed to an upper end thereof. In FIG. 3, 19 is an engine, 20 is its driving rotary shaft,
21 is a mission case, 22 is an input shaft, and 23 is an output shaft. A drive shaft 24 for driving the reaper 9 is provided in the support pipe 11, and a horizontal shaft in the horizontal cylinder 12 via a bevel gear 25 and a bevel gear 26. Rotate 27. The left and right side support pipes 16a, 16b
A right rotary shaft 28 for rotating the right pulling device 17 and a left rotary shaft 29 for rotating the left pulling device 18 are provided therein, and the right rotary shaft 28 rotates via bevel gears 30 and 31. The left rotation shaft 29 rotates via bevel gears 32 and 33.

Then, the right sprocket 34
The right passive sprocket 36 is attached to the right passive rotating shaft 35 provided near the right sprocket 34, and the chain 37 is wound around the right sprocket 34 and the right passive sprocket 36. 38 is a star wheel for the right tip provided on the right passive rotary shaft 35, 39 is a right lateral case, and the right lateral case 39 integrally projects from the right support pipe 16a.

Similarly, a left sprocket 40 is provided midway above the left rotation shaft 29, and a left rotation shaft 41 provided near the left sprocket 40
The left passive sprocket 42 is attached to, and the chain 43 is wound around the left sprocket 40 and the left passive sprocket 42. Reference numeral 44 denotes a left tip tip star wheel provided on the left rotation shaft 41, 45 denotes a left lateral case, and the left lateral case 45 integrally projects from the left support pipe 16b.

In FIG. 1, 46 is a root scraping device, 47 is a bundling device, 48 is a stock carrier device, 49 is a grass body, and 50 is a cutting blade.

(Operation) Next, the operation will be described.

When the traveling device 2 is rotated and moved forward, it is weeded by the grass body 49, raised by the central raising device 15, the right raising device 17, and the left raising device 18, respectively, and the root of the grain stem is cut by the cutting blade 50 and cut. The picked grain culms are raked at their tips by the star wheels 38, 44 for the left and right tips, respectively, by the root scraping devices 46, 46, focused at one location by the focusing device 47, and fed by the transport device 48. 4 and the starting ends of the grain culling rods 5 are taken over and threshed by the automatic feed type threshing device 3.

In the above case, in the device of the present application, the right-tip tip star wheel 38 fixes the right lateral case 39 to the right side support pipe 16a, and attaches it to the right passive rotary shaft 35 provided at the tip of the right lateral case 39. , Left ear tip star wheel 44 is left support pipe 16b
Since the left side case 45 is fixed to the left side case 45 and attached to the left rotation shaft 41 provided at the tip of the left side case 45, the drive mechanism of the left and right tip star wheels 38, 44 becomes extremely simple.

That is, in the case of the present application, since it has the above-mentioned configuration, the horizontal shaft 27 is rotated from the drive shaft 24 through the bevel gears 25 and 26, and the left and right bevel gears 30 and 31 and the bevel gears 32 and 33 are described. The right rotary shaft 28 and the left rotary shaft 29 are rotated via the, and thereafter, the right sprocket 34 and the right passive sprocket 36 rotate the right tip star wheel 38, and the left sprocket 40 and the left passive sprocket 42 make the left. Since the tip star wheel 44 is rotated, as compared with the case where the rotation is transmitted from the horizontal shaft provided at the upper end of the support pipe, as in the case of a known example star wheel for a tip, an expensive and troublesome bevel gear and Since the vertical rotation axis is not required, the structure can be remarkably simplified.

(Effect) The above-mentioned known one has a structure in which the left and right tip star wheels have a structure in which rotation is transmitted from a horizontal axis provided at the upper end of each support pipe, as shown in FIG. In the case of this structure, a pair of expensive bevel gears dedicated to the left and right tip star wheels are required between the horizontal axis and the rotation axis. Moreover, since a rotating shaft is required in addition to the shaft for stopping the star wheel shafts for the left and right tips, the structure becomes complicated and expensive.

However, according to the present invention, the traveling device 2 is provided below the frame 1.
, An automatic feeding type threshing device 3 is provided on the upper part of the frame 1, and a mowing part 9 is provided in front of the frame 1, and an upper end 10 of a support pipe 11 of the mowing part 9 is axially attached to the frame 1 side. , The horizontal pipe 12 is fixed to the lower end of the support pipe 11,
The rear lower end of the central support pipe 14 whose front rises in the center of the front side, the rear lower end of the right support pipe 16a whose front rises to the right side, and the rear lower end of the left side support pipe 16b which rises front to the left side, respectively, The central pulling device 15 is fixed to the upper end of the central support pipe 14, the right pulling device 17 is fixed to the upper end of the right side support pipe 16a, and the left pulling device 18 is fixed to the upper end of the left side support pipe 16b. Is a right rotation shaft 28 for rotating the right pulling device 17 and the left support pipe 16
In the configuration in which left rotation shafts 29 for rotating the left pulling device 18 are provided in the b, the right side support pipe
The right lateral case 39 that projects laterally is provided at the upper and lower intermediate position of 16a,
A right passive rotary shaft 35 is provided at the tip of the right lateral case 39, the right tip rotating star wheel 38 is fixed to the right passive rotary shaft 35, and the right sprocket 34 is attached to the right rotary shaft 28. The right passive sprocket 36 is fixed to each, the chain 37 is wound around the right sprocket 34 and the right passive sprocket 36, and a left lateral case 45 protruding laterally is provided at an intermediate position in the vertical direction of the left support pipe 16b. A left passive rotary shaft 41 is provided at the tip of the left lateral case 45, a left tip tip star wheel 44 is fixed to the left passive rotary shaft 41, and a left sprocket 40 is attached to the left rotary shaft 29.
Since the left passive sprocket 42 is fixed to the left passive rotary shaft 41, respectively, and the left sprocket 40 and the left passive sprocket 42 are used as a cutting part in a combine in which a chain 43 is wound, so that the right tip is for The star wheel 38 is rotated by a chain 37 mounted on a right passive sprocket 36 fixed to the right passive rotation shaft 35 and a right sprocket 34 fixed to the right rotation shaft 28, and similarly, the left tip star wheel 44 is left. Left passive sprocket 42 fixed to passive rotary shaft 41 and left rotary shaft
Since it can be rotated by the chain 43 hung on the left sprocket 40 fixed to 29, the driving of the left and right tip star wheels 38, 44 is cheaper than a known example that becomes expensive bevel gear conduction. Can be formed.

Further, the above-mentioned publicly known example, as shown in Fig. 3 of the publicly known publication, has a shaft to which a star wheel for left and right tips is fixed,
Two rotating shafts for rotating the left and right tip star wheels are provided as separate shafts. Among them, the shaft for rotating the left and right tip star wheels is a shaft dedicated to rotating the star wheel. On the other hand, the left and right tip star wheels 38 of the present application,
Since the rotation of 44 is made to rotate by the left and right rotation shafts 28 and 29 that rotate the left and right pulling devices 17 and 18, the left and right rotation shafts 28 and 29 rotate and the left and right raising shafts 38 and 44 for the left and right tip ends. Since the device 17 and 18 are also used for rotation, the structure is simple and the cost can be reduced.

[Brief description of drawings]

1 is an overall side view, FIG. 2 is a front view, FIG. 3 is a plan view, FIG. 4 is a plan view of the same reaping section, and FIG. 5 is a rear view thereof. Explanation of reference numerals 1 ... Frame, 2 ... Traveling device, 3 ... Automatic feeding type threshing device, 4 ... Grain culm supply chain, 5 ... Grain culling rod, 6
…… Grain tank, 7 …… Lifting cylinder, 8 …… Driver's seat, 9 ……
Mowing part, 10 …… top end, 11 …… supporting pipe, 12 …… horizontal cylinder,
13 ... Front protruding tube, 14 ... Central support pipe, 15 ... Central lifting device, 16a ... Right support pipe, 16b ... Left supporting pipe, 17 ... Right lifting device, 18 ... Left lifting device, 19 …… Engine, 20 …… Rotary axis, 21 …… Mission case, 22…
Input shaft, 23 output shaft, 24 drive shaft, 25 bevel gear, 26 bevel gear, 27 horizontal shaft, 28 right rotation shaft, 29 left rotation shaft, 30 bevel gear , 31 …… bevel gear, 32 …… bevel gear, 33 …… bevel gear, 34 …… right sprocket, 35 …… right rotating shaft, 36 …… right passive sprocket, 37 …… chain, 38 …… star wheel for right tip, 39
…… Right side case, 40 …… Left sprocket, 41 …… Left rotating shaft, 42 …… Left passive sprocket, 43 …… Chien, 44 ……
Left ear tip star wheel, 45 …… left side case, 46 …… root scraping device, 47 …… focusing device, 48 …… transport device, 49 …… grass, 50 …… cutting blade.

Claims (1)

[Claims] 1. A traveling device 2 is provided below the frame 1, an automatic feeding type threshing device 3 is provided above the frame 1, and a cutting section 9 is provided in front of the frame 1, and a support pipe for the cutting section 9 is provided. The upper end 10 of 11 is axially attached to the frame 1 side, the horizontal pipe 12 is fixed to the lower end of the support pipe 11, and the rear lower end of the central support pipe 14 in which the central portion of the horizontal pipe 12 stands upright The rear lower end of the right side support pipe 16a rising forward is fixed to the left side, the rear lower end of the left side support pipe 16b rising front is fixed to the left side, and the central pulling device 15 is fixed to the upper end of the central support pipe 14.
A right pulling device 17 is fixed to the upper end of the right side support pipe 16a, and a left pulling device 18 is fixed to the upper end of the left side support pipe 16b, and a right rotation shaft for rotating the right pulling device 17 is provided in the right side support pipe 16a. In the configuration in which the left rotation shaft 29 for rotating the left pulling device 18 is provided in each of the left side support pipes 16b in the left side support pipe 16b, a right lateral case 39 that laterally protrudes to a vertical intermediate position of the right side support pipes 16a. And the right passive rotary shaft 35 is provided at the tip of the right lateral case 39.
The star wheel 38 for the right tip is fixed to 35, and the right rotating shaft 28
The right sprocket 34 is fixed to the right passive rotary shaft 35, the right passive sprocket 36 is fixed to the right passive sprocket 34, and the chain 37 is wound around the right sprocket 34 and the right passive sprocket 36. Is provided with a left lateral case 45, and the left passive rotary shaft 41 is attached to the tip of the left lateral case 45.
The left tip rotary star wheel 44 is fixed to the left passive rotary shaft 41, the left sprocket 40 is fixed to the left rotary shaft 29, and the left passive sprocket 42 is fixed to the left passive rotary shaft 41. A harvesting section in a combine in which a chain 43 is wound around a sprocket 40 and the left passive sprocket 42.