JP3114211B2 - Feed chain transmission device such as combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feed chain transmission device such as a combine.

[0002]

2. Description of the Related Art In a feed chain-type threshing apparatus in which a spike portion is supplied to a threshing room and threshing is carried out while nipping and transporting a root portion of a grain culm, a feed chain-type threshing device is provided. Generally, a driving sprocket is driven. However, since the threshed straw is conveyed, straw scraps are liable to wind around the straw and transfer resistance of the straw is likely to occur. The present invention ensures power transmission to the drive sprocket and simplifies the power transmission mechanism, thereby preventing the attachment and catching of straw chips and the like to the input shaft and other operating members.

[0003]

SUMMARY OF THE INVENTION The present invention proposes to solve the above-mentioned problems, and takes the following technical means. That is, the input shaft 3 having an input pulley, the sprocket drive shaft 35, and the clutch 6 are provided.
A transmission case 4 with a sprocket drive shaft 35 on the front side and an input shaft 3 on the rear side is provided on the transfer end side of the feed chain 1, and a partition plate 5 for guiding straw chips and the like circling around the feed chain 1 is provided. The input shaft 3 and the sprocket drive shaft 3
5 and a feed chain transmission device such as a combine, which is provided along the vertical direction.

[0004]

The rotational power transmitted to the input shaft 3 of the transmission case 4 is transmitted to the sprocket drive shaft 35 via the transmission elements such as gears in the transmission case 4 and the clutch 6. The drive sprocket 2 is attached to the sprocket drive shaft 35, and rotates the feed chain 1. During the threshing operation, the grain culm is supplied to the threshing room while being pinched and conveyed by the feed chain 1 and is subjected to threshing treatment. You. At this time,
At the end of the feed chain 1, the grain is transferred downward from the driving sprocket 2 while separating the culm conveyed while being held. At this time, the swarf and the like coming around are guided downward by the partition plate 5. As described above, according to the present invention, the transmission case 4 including the input shaft 3 having the input pulley, the sprocket drive shaft 35, and the clutch 6 and having the sprocket drive shaft 35 on the front side and the input shaft 3 on the rear side is mounted. A partition plate 5 provided at the transfer end side of the feed chain 1 and guiding straw chips and the like rotating around the feed chain 1 is provided between the input shaft 3 and the sprocket drive shaft 35 in a vertical direction. Therefore, the input shaft 3 is hardly caught by straw debris or the like, and an excessive load is applied to the input shaft 3 to damage the input shaft 3 or break the clutch 6 to disassemble the transmission case 4. Work is not required. Moreover, since the partition plate 5 only needs to be interposed between the input shaft 3 and the sprocket drive shaft 35, the configuration is simple.

[0005]

[0006]

[0007]

1 to 4, a threshing device 8 is mounted on a vehicle body 10 having a crawler 9 and threshed upon receiving a culm harvested and transported from a cutting device 11 in front of the vehicle body 10. The handling cylinder is suspended around a handling cylinder axis extending in the front-rear direction, and is installed in the threshing chamber 12. The feed chain 1 is moved in the front-rear direction along a grain culm transfer port on one side of the threshing chamber 12.
And a straddling rod 13 along the upper side, and the threshing side of the grain culm is sandwiched between the feed chain 1 and the strangulating rod 13 and threshing while transporting the grain backward.

The feed chain 1 includes a wheel 14 in front of the threshing chamber 12, a driving sprocket 2 in the rear, and an intermediate wheel 15
A chain rail 1 that slides under the feed chain 1 is provided at a portion facing the pinching rod 13.
6 are provided. Each of these driving sprockets 2 and rolling wheels 1
4, 15 and the chain rail 16 and the like are provided outside the threshing machine wall 17. Threshing room 12 rear end outlet 1
8, a suction sorting chamber 21 in which a suction fan 19 is supported by a fan shaft 20 is connected, and the transmission case 4 is attached to the outer surface of the threshing machine wall 17 located at the base of the suction sorting chamber 21. ing.

Above the suction sorting chamber 21, a culm chain 22 and a guide rod 23 are provided in an oblique direction from the base of the stock to the tip of the spike. The pinched and conveyed threshed waste culm is inherited and transferred to the rear, and is supplied to a waste culm cutter 24 attached to the rear end of the threshing device 8 to be shortened and cut. Threshing device 8
Has a sorter unit 25 at the lower part, receives threshed in the threshing room 12, sorts it into grains and straw chips while oscillating with an oscillating sorter. The apparatus is supplied to a Glen tank 27 provided on the tip side body 10 of the threshing device 8 by the machine 26, and straw waste and the like are sucked from the suction sorting chamber 21 to the suction fan 19 and discharged outside the machine. I have.

In the transmission mechanism of the threshing device 8, the transmission to the handle cylinder shaft is performed from a transmission case 28 on the rear side of the threshing chamber 12.
The transmission of the culm chain 22 is performed from the end of the transmission case 28 on the stock base side. The transmission of the sorting device 25, the suction fan 19, the cutter 25, and the like is performed via a belt 30 from the driving pulley 29 on the front side of the threshing device 8, the first transfer spiral shaft 31 and the second transfer spiral shaft 32 at the bottom of the sorting device unit 25. And the like, and from the first transfer spiral shaft 31 via the belt 33 to the input shaft 3 above the rear portion, the cutter shaft 34, and the like.

The belts 30, 33, the feed chain 1 and the like are provided with a cover 48 on the outside of the threshing machine wall 17.
Can be covered by The transmission case 4 on which the input shaft 3 and the sprocket shaft 35 of the drive sprocket 2 are mounted is formed so as to protrude outside the threshing machine wall 17, and the input shaft 3 is located rearward and the sprocket shaft 35 is located forward. The fan shaft 20 of the suction fan 19 and the intermediate gear shaft 36 are mounted between the input shaft 3 and the sprocket shaft 35, and the transmission on each of the shafts 3, 20, 36 and 35 is performed. The engagement of the gears 37, 38, 39, 40, etc.,
The transmission rotation of the fan shaft 20 and the sprocket shaft 35 is performed by the input rotation of.

In the transmission mechanism in the transmission case 4, a transmission clutch 6 is provided on the sprocket shaft 35 so as to engage and disengage with the gear 40, and a crank-shaped clutch shifter 41 is connected to the transmission clutch 6. By rotating the clutch shifter 41 by engaging the engaging groove on the outer periphery of the gear, the transmission rotation from the gear 40 to the driving sprocket 2 integral with the sprocket shaft 35 can be entered and cut off.

The clutch interlocking mechanism 7 includes the transmission case 24
Shifter arm 42 projecting upward from
A spring 44 is provided between a wire bracket 43 fixed to the rear end.
A wire 45 is provided so as to be operable via a wire, and the wire 45 is configured to be operated in conjunction with an operation lever of a control device, an elevating device of the reaper 11 or the like. When the cutting device 11 is raised to the non-cutting position, the transmission to the cutting device 11 is cut off and the transmission clutch 6 is turned off to rotate the feed chain 1 when the cutting device 11 is raised to the non-cutting position. In an interlocking configuration that automatically stops. A return spring 46 tensions the shifter arm 42 in a direction to return.

The partition plate 5 is provided vertically between the drive sprocket 2 outside the transmission case 4 and the input pulley 47 of the input shaft 3, and the lower end portion covers the front side of the belt 33. In addition, the lower part of the threshing machine wall 17 is inclined outward, or the machine wall of the lower sorting device 25 is stepped inward, so that the straw debris dropped along the partition plate 5 is It is preferable to configure the relationship such that it does not fall into the rotating circle such as 30 or 30.

The upper end of the partition plate 5 is connected to the threshing machine wall 17.
The upper edge of the outer cover 48 is connected to an upper cover 49 that covers the rear side of the partition plate 5. The belt 33, the pulley 47, the clutch interlocking mechanism 7, etc.
Needless to say, the outer cover 48, the front partition plate 5, and the upper cover 49 are used to cover the upper cover 49 and the like. The root portion of the culm, which is inherited and conveyed from the feed chain 1 to the culm chain 22, is transported and guided rearward above the upper cover 49.

When the transmission clutch 6 is engaged by the operation of the wire 45, the feed chain 1 is rotated by the transmission of the gears 37 to 40 from the input shaft 3 side, and the root portion of the grain stem transferred and supplied from the reaper 11 is supplied. Is transported while being pinched between the pinching rods 13 and the spikes are supplied to the threshing chamber 12 for threshing. The threshed culm consists of the rear culm chain 22 and the guide rod 2 on the rear side.
3 and is supplied to the rear culm cutter 24 and is chopped.

During the transmission of the driving sprocket 2, the suction fan 19 is rotated by the rotation of the fan shaft 20 to suck and discharge straw dust, dust, and the like generated in the threshing chamber 12, the sorting unit 25, and the like. When the culm to which the feed chain 1 is transferred is inherited by the culm chain 22, a part of the straw waste on the side of the root of the stock turns around the feed chain 1 and is guided downward by the partition plate 5. And fall to the running ground. Since the belt 33, the input shaft 3, the clutch interlocking mechanism 7, and the like are covered by the partition plate 5, the upper cover 49, the side cover 48, and the like, there is no intrusion or pull-in of straw chips or the like from the front side. , Transmission and clutch interlocking are maintained smoothly.

Reference numeral 50 denotes a cockpit, and 51 denotes a reaper 11.
The raising rug 52 is rotated by the cereal stem raising device. 53 is a weeding frame, 54 is a cutting blade device, 55 is a transfer device for holding the harvested culm and transporting it to the threshing device 8.
, Which are raised and lowered by the expansion and contraction of the lift cylinder 57 by hydraulic pressure, and the cutting height is also adjusted. FIG.
6, the configuration of the cutting blade device 54 of the cutting device 11 will be described. The cutting blade device 54, the grain stalk raking device 58, and the like are mounted on a cutting blade frame 59 at the front of the cutting frame 56. A plurality of sets of grain stalk raking devices 58 each comprising a pair of left and right star wheels 60 and a lug raking belt 61 stretched forward from the star wheels 60 are arranged along the cutting blade device 54. Thus, the mowing device 11 of the multi-row type is configured. The shafts 63 at the rear ends of the star wheel 60 and the scraping belt 61 are provided at the left and right ends of the scraping frame 62 erected from the cutting blade frame 59 in a Y-shape.
A shaft 63 such as 0 is rotatably supported, and is driven to rotate by a transmission mechanism passing from inside the cutting frame 56 to the inside of the cutting blade frame 59 and the raking frame 62. A space between the raking frames 62 is a raking passage portion 64 of the harvested grain culm, and a guide rod 6 for guiding the culm between the raking belt 61 and the front side.
5 are provided.

The cereal stem guided between the weeding frames 53 is raised to a fixed posture by the cereal stem raising device 51, and the lower part of the stem is squeezed and guided by the squeezing lug of the squeezing belt 61. The stalks are collected by the star wheel 60 into the scraping area, and the root of the stock is cut by the cutting blade device 54. The cut culm is transferred by the transfer device 55. 7 and 8 show the vehicle body 10
The rear part shows the structure of an intake cover 67 of an engine 66 mounted behind the Glen tank 27.
6, a radiator 68 is provided on the rear side, a fuel tank 69 is provided above the radiator 68, and an engine cover 67 which can be opened and closed vertically is provided on the rear side of each of the chambers 71, 72 of the engine 66 and the fuel tank 69. . In the engine cover 67, a bypass air passage 70 is formed so as to face and communicate between the fuel tank 69 and the radiator 68 of the engine. The intake cover 67 may be formed as a punched plate similarly to the side cover 73 that covers the side surface of the tank chamber 72.

Reference numeral 74 denotes an engine cover for covering the engine 66, and the intake cover 67 is provided on the rear side surface. FIG.
The difference from the above example is that the intake cover 67 is configured to be vertically separable, only the upper half is configured to be detachable, and the lower half is configured as an open / close cover that rotates around a hinge 75. The bypass air passage 70 is provided between the upper and lower intake covers 6.
7 are formed.

[Brief description of the drawings]

 The figure shows an embodiment of the present invention.

FIG. 1 is a side view of a transmission case part showing a partial plan view.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a partial sectional view of FIG. 1;

FIG. 4 is a side view of the combine.

FIG. 5 is a plan view of a part of the reaper.

FIG. 6 is a front view of FIG. 5;

FIG. 7 is a side view showing a part of the engine section.

FIG. 8 is a rear view of the engine cover.

FIG. 9 is a rear view showing another embodiment of the engine cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Feed chain 2 Drive sprocket 3 Input shaft 4 Transmission case 5 Partition plate 6 Transmission clutch 7 Interlocking mechanism

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01F 12/10 A01F 12/56

Claims (1)

(57) [Claims] An input shaft having an input pulley and a sprocket;
Drive shaft 35 and clutch 6 for driving a sprocket.
A transmission cable with the shaft 35 on the front and the input shaft 3 on the rear
A feed 4 is provided at the transfer end side of the feed chain 1,
A partition plate 5 for guiding straw waste and the like around the chain 1,
Between the input shaft 3 and the sprocket drive shaft 35
A feed chain transmission device such as a combine, which is provided along a direction .