JP2020182388A - combine - Google Patents

Abstract

To provide a structure that improves replacement work trouble of a reaping transmission belt particularly having high frequency of damage in belt transmission due to a configuration for providing a reaping input pulley to input drive rotation into the reaping device in an inner side of a reaper input shaft.SOLUTION: A drive shaft of a base of a conveyance elevator is used as a reaper input shaft 22 to a reaping device, and a reaping input pulley 23 is provided in an outer end side of the reaper input shaft 22. The reaping input pulley 23 is configured so that the drive rotation of an engine is transmitted from a threshing counter pulley 26 provided to a threshing counter shaft 27 provided by being penetrated into a front section of a winnowing fan of a threshing device 3.SELECTED DRAWING: Figure 8

Description

The present invention relates to a combine.

Conventionally, it is known that the drive shaft at the base of the transport elevator is also used as the cutting input shaft for the cutting device, and the cutting forward rotation input pulley is provided on the inner end side of the cutting input shaft (see Patent Document 1).

JP-A-2018-0000036

In the above-mentioned known example, since the cutting input pulley 23 for inputting the drive rotation to the cutting device is provided on the inner side of the cutting input shaft, it is troublesome to replace the cutting transmission belt 25, which is frequently damaged, among the belt transmissions. There is a problem that there is.
The present application solves the above-mentioned problems by devising the configuration and arrangement of the transmission mechanism to the cutting device.

In the invention according to claim 1, a cutting device 4 for cutting a wall insert in a field is provided in front of the traveling device 2, and a threshing device 3 connected to the cutting device 4 by a transport elevator 14 is provided above the traveling device 2. A grain tank 5 is provided on the side of the threshing device 3, and the cutting device 4 is configured to transmit the rotation of the engine 20 via the transport elevator 14, and the drive shaft at the base of the transport elevator 14 is a cutting input shaft to the harvesting device 4. Also used as 22, a cutting input pulley 23 is provided on the outer end side of the cutting input shaft 22, and the cutting input pulley 23 is provided on a threshing counter shaft 27 provided so as to penetrate the front portion of the wall insert 16 of the threshing device 3. It is a combine that is configured to transmit the drive rotation of the engine 20 from the counter pulley 26.
In the invention according to claim 2, the threshing counter pulley 26 is a combine harvester arranged between the wall insert pulley 28 for inputting rotation to the wall insert 16 and the cutting input pulley 23.
In the invention according to claim 3, the threshing counter shaft 27 is provided with a wall insert output pulley 29 and a sorting unit output pulley 31 for transmitting drive rotation to the swing sorting shelf of the threshing device 3, and is provided on the threshing counter shaft 27. Of the threshing counter pulley 26, the wall insert output pulley 29, and the sorting unit output pulley 31, at least the threshing counter pulley 26 is arranged on the outermost side as a combine.
In the invention according to claim 4, the cutting input shaft 22 of the transport elevator 14 is provided with a cutting drive gear 35 that rotationally transmits to the drive unit of the cutting device 4 inside the cutting input pulley 23, and is provided inside the cutting drive gear 35. It is a combine provided with a second mower drive gear 36.
In the invention according to claim 5, the harvesting input shaft 22 of the transport elevator 14 is a combine in which the base of the tension arm 38 of the tension pulley 37 that tensions the cutting transmission belt 25 is attached.
In the invention according to claim 6, the cutting input shaft 22 is attached to the front plate front plate 52 of the threshing device 3 by a pair of left and right support members 50 and 51, and the outer support member 51 supporting the right side of the cutting input shaft 22 is a pair of left and right support members 51. It is composed of the support metal 53 and 54 of the above, and is a combine in which a cutting drive gear 35 and a second mower drive gear 36 are provided on a cutting input shaft 22 between the support metal 53 and the support metal 54.

In the invention according to claim 1, the drive shaft at the base of the transport elevator 14 is also used as the cutting input shaft 22 for the cutting device 4, and the cutting input pulley 23 provided on the outer end side of the cutting input shaft 22 is used. Since the structure is such that the drive rotation of the engine 20 is transmitted from the threshing counter pulley 26 of the threshing counter shaft 27 provided so as to penetrate the front portion of the threshing device 3, it can be replaced from the left side of the combine body without removing other belts. It can be done and the belt replacement work can be facilitated.
In the invention according to claim 2, since the threshing counter pulley 26 is arranged between the wall insert pulley 28 and the wall insert pulley 23, the installation space of the wall insert pulley 23, the threshing counter pulley 26 and the wall insert pulley 28 is reduced. Therefore, the arrangement can be rationalized, and the belt replacement work of the cutting transmission belt 25 can be facilitated.
In the invention according to claim 3, the threshing counter shaft 27 is provided with a wall insert output pulley 29 and a sorting unit output pulley 31, and the threshing counter pulley 26, a wall insert output pulley 29 and a sorting unit output pulley provided on the threshing counter shaft 27 are provided. Of the 31, at least the threshing counter pulley 26 is arranged on the outermost side, so that the cutting transmission belt 25, which is frequently replaced due to damage, can be replaced without removing other belts, and the belt replacement work can be performed. It can be done easily.
In the invention according to claim 4, the cutting input shaft 22 of the transport elevator 14 is provided with a cutting drive gear 35 that rotationally transmits to the drive unit of the cutting device 4 inside the cutting input pulley 23, and is provided inside the cutting drive gear 35. Since the second mower drive gear 36 is provided, the cutting transmission belt 25, which is frequently replaced due to damage, can be replaced without removing the other belt, and the belt replacement work can be facilitated.
In the invention according to claim 5, since the base of the tension arm 38 of the tension pulley 37 that tensions the cutting transmission belt 25 is attached to the cutting input shaft 22 of the transport elevator 14, the tension pulley 37 of the cutting transmission belt 25 can be easily used. It can be separated from the cutting transmission belt 25, and the replacement work of the cutting transmission belt 25 can be facilitated.
In the invention according to claim 6, the cutting input shaft 22 is attached to the front plate front plate 52 of the grain removal device 3 by a pair of left and right support members 50 and 51, and the outer support member 51 supporting the right side of the cutting input shaft 22 is a pair of left and right support members 51. Since the cutting input shaft 22 between the supporting metal 53 and the supporting metal 54 is provided with the cutting drive gear 35 and the second mower drive gear 36, the vicinity of the cutting input pulley 23 is provided. The cutting input shaft 22 is held by the support metal 53 and the support metal 54 of the support member 51 to secure the support strength, and the maintainability can be improved by dividing the cutting input shaft 22 into two parts.

Side view of the combine. Schematic diagram of the transmission route. Schematic diagram of the transmission route. Side view of the threshing device. Front view of the threshing device. Front view near the cutting input pulley. The same side view. Front view of the same other embodiment. (A) Front view near the support member. (B) Front view of another embodiment of the support member. An exploded view of the scraping reel. Side view of the mounting part of the slat bar. A side view of another embodiment of the mounting portion of the slat bar. A side view of another embodiment of the mounting portion of the slat bar. A side view of another embodiment of the mounting portion of the slat bar. A side view of another embodiment of the mounting portion of the slat bar. A side view of another embodiment of the mounting portion of the slat bar. A side view of another embodiment of the mounting portion of the slat bar. A side view of another embodiment of the mounting portion of the slat bar. Side view of the table. Side view of the reaping device. Top view of the combine.

Explaining one embodiment of the present invention with reference to the drawings, 1 is a traveling device provided at a position below the machine frame 1, 2 is a traveling device provided at a position below the body frame 1, and 3 is a threshing device provided at a position above the body frame 1. 4 is a cutting device provided in front of the machine frame 1, 5 is a grain tank for temporarily storing grains taken out from the threshing device 3 provided on the side of the threshing device 3, and 6 is a control unit. (Fig. 1).
The cutting device 4 is configured by providing a reel 12, a cutting blade 13, and the auger 8 on the table 11, the tip of the transport elevator 14 is attached to the table 11, and the base of the transport elevator 14 is the threshing chamber of the threshing device 3. Connect to (Fig. 1).

In the threshing device 3, a handling cylinder 15 is axially mounted on the upper part, the main lower side of the handling cylinder 15 is surrounded by a handling net (not shown), and a wall insert 16 is provided on the lower starting end side of the handling net. Below the handling chamber, a wind selection chamber is formed in which grains and foreign substances can be selected by the wind of the wall insert 16, and in the wind selection room, a swing that reciprocates in the direction of the wind of the wall insert 16 (front-back direction). A dynamic sorting shelf 17 is provided. The first conveyor 18 is provided at a predetermined position below the rocking sorting shelf 17, and the second conveyor 19 is provided behind the first conveyor 18.
The cutting device 4 is configured to transmit the rotation of the engine 20 via the transfer elevator 14, and the drive shaft at the base of the transfer elevator 14 is also used as the cutting input shaft 22 to the cutting device 4, and the outer end of the cutting input shaft 22 is used. A cutting input pulley 23 is provided on the side, and the forward rotation of the engine 20 is transmitted to the cutting input pulley 23.

Therefore, it is not necessary to open the grain tank 5 for attaching / detaching / replacing the cutting transmission belt 25 hung on the cutting input pulley 23 provided on the right side of the transport elevator 14 as in the conventional case, and the cutting transmission belt from the left side of the combine harvester. 25 can be exchanged, and the belt exchange work can be facilitated.
The rotational transmission to the cutting input pulley 23 is driven by the threshing counter pulley 26.
That is, a threshing counter shaft 27 is provided so as to penetrate the front portion of the wall insert 16 of the threshing device 3, and a cutting transmission belt 25 is provided between the threshing counter pulley 26 and the cutting input pulley 23 provided at the outer end of the threshing counter shaft 27. Turn around.

Therefore, the cutting transmission belt 25, which is frequently replaced due to damage, can be replaced from the left side of the combine harvester without removing other belts as compared with the conventional case, and the belt replacement work can be facilitated.
The threshing counter pulley 26 is arranged between the wall insert pulley 28 for inputting rotation to the wall insert 16 and the cutting input pulley 23.
Therefore, the installation space of the cutting input pulley 23, the threshing counter pulley 26, and the wall insert pulley 28 can be reduced, the arrangement can be rationalized, and the belt replacement work of the cutting transmission belt 25 can be facilitated.

A wall insert output pulley 29 is provided on the threshing counter shaft 27, a wall insert belt 30 is hung between the wall insert output pulley 29 and the wall insert pulley 28, and the threshing counter shaft 27 is provided with a sorting unit output pulley 31. The sorting section belt 33 is hung between the output pulley 31 and the sorting section input pulley 32.
Then, of the threshing counter pulley 26, the wall insert output pulley 29, and the sorting unit output pulley 31 provided on the threshing counter shaft 27, at least the threshing counter pulley 26 is arranged on the outermost side.
Therefore, the cutting transmission belt 25, which is frequently replaced due to damage, can be replaced without removing other belts, and the belt replacement work can be facilitated.

Further, the threshing counter shaft 27 is arranged in the order of the sorting unit output pulley 31, the threshing counter pulley 26, and the wall insert output pulley 29 from the inside.
Therefore, the replacement work of the cutting transmission belt 25 can be easily performed by simply removing the wall insert output pulley 29, the length of the threshing counter shaft 27 can be shortened, and the bending moment applied to the threshing counter shaft 27 can be reduced.
That is, when the sorting unit output pulley 31 and the wall insert output pulley 29 are arranged adjacent to each other, the sorting unit belt 33 of the sorting unit output pulley 31 and the wall insert belt 30 of the wall insert output pulley 29 interfere with each other (contact due to belt runout or the like). Therefore, a sufficient distance is provided between the sorting unit output pulley 31 and the wall insert output pulley 29, so that a large amount of clearance in the axial direction is provided.

On the other hand, when the threshing counter pulley 26 is arranged between the sorting unit output pulley 31 and the wall insert output pulley 29, the cutting transmission belt 25 hung around the threshing counter pulley 26 goes to the front cutting input pulley 23. A clearance can be provided as a belt space between the sorting section belt 33 of the sorting section output pulley 31 and the wall insert belt 30 of the wall insert output pulley 29 by the amount of the cutting transmission belt 25, and as a result, the threshing counter shaft 27 It can be configured compactly in the axial direction.
Further, the cutting input shaft 22 of the transport elevator 14 is provided with a cutting drive gear 35 for driving the cutting blade 13 and the auger 8 inside the cutting input pulley 23, and a second mower drive gear 36 is provided inside the cutting drive gear 35. ..

Therefore, the cutting transmission belt 25, which is frequently replaced due to damage, can be replaced without removing other belts, and the belt replacement work can be facilitated.
Further, the base of the tension arm 38 of the tension pulley 37 that tensions the cutting transmission belt 25 is attached to the cutting input shaft 22.
Therefore, the tension pulley 37 of the cutting transmission belt 25 can be easily separated from the cutting transmission belt 25, and the replacement work of the cutting transmission belt 25 can be facilitated.
Further, the base of the tension arm 38 of the tension pulley 37 that tensions the cutting transmission belt 25 may be attached to the left front frame 40 of the threshing device 3 by the attachment shaft 39.
Therefore, the support rigidity of the tension arm 38 can be increased without complicating the structure around the cutting input shaft 22.

Further, the base of the tension arm 38 of the tension pulley 37 that tensions the cutting transmission belt 25 may be attached to the threshing counter shaft 27.
Therefore, the support configuration of the tension pulley 37 can be simplified.
Although not shown, the base of the tension arm 38 of the tension pulley 37 that tensions the cutting transmission belt 25 may be attached to the threshing counter shaft 27.
Therefore, the tension pulley 37 of the cutting transmission belt 25 can be easily separated from the cutting transmission belt 25, and the replacement work of the cutting transmission belt 25 can be facilitated.
Further, the rotation fulcrum shaft 44 of the tension arm 43 of the tension pulley 42 that tensions the wall insert belt 30 is arranged below the axis of the threshing counter pulley 26.

Therefore, the threshing counter shaft 27 can be arranged closer to the wall insert shaft 46, and the threshing counter shaft 27 can be arranged appropriately separated from the cutting input shaft 22.
The cutting input shaft 22 is attached to the front plate 52 of the grain removal device 3 by a pair of left and right support members 50 and 51, and the outer support member 51 that supports the right side of the cutting input shaft 22 is composed of a pair of left and right support metals 53 and 54. A cutting drive gear 35 for hanging the cutting drive chain 55 around the cutting input shaft 22 between the support metal 53 and the support metal 54, and a second mower drive gear 36 for hanging the second mower drive chain 57 are provided.
Therefore, the cutting input shaft 22 is held by the supporting metal 53 and the supporting metal 54 of the supporting member 51 in the vicinity of the cutting input pulley 23 to secure the supporting strength, and the maintenance is improved by dividing the cutting input shaft 22 into two parts.

In this case, the left and right support metal 53 and the support metal 54 of the outer support member 51 are the elevator rotation fulcrum shaft holding metal and the cutting drive shaft holding metal, respectively.
The cutting input shaft 22, the cutting drive gear 35, and the second mower drive gear 36 are so-called spline couplings or key couplings.
Therefore, the bearings of the support metal 53 and the support metal 54 are prevented from being damaged while ensuring the rotation transmission efficiency.
Although not shown, the left and right support metal 53 and the support metal 54 may be tightened and fixed with bolts parallel to the axial direction of the cutting input shaft 22 to facilitate centering of the bearing.
The support metal 53 and the support metal 54 of the support member 51 are each composed of a unit bearing 60.

Therefore, since the support member 51 is divided into two parts, maintainability can be improved and the load on the unit bearing 60 due to misalignment can be reduced.
FIG. 8 shows another embodiment of transmission, in which the left side portion of the cutting input shaft 22 is extended to the vicinity of the left side surface of the threshing device 3 to form an extension portion 61, and the cutting input pulley 23 is provided in the extension portion 61.
Therefore, the support member 51 can be composed only of the support metal 54.
Further, a relay shaft 63 is provided in the vicinity of the cutting input shaft 22, a cutting drive gear 35 is provided on the outside of the relay shaft 63, and a second mower drive gear 36 is provided on the inside.
Therefore, the left-right width of the transmission mechanism of the cutting drive chain 55 and the second mower drive chain 57 can be reduced.

35A is an intermediate gear that outputs the rotation of the cutting input shaft 22 to the relay shaft 63, 35B is an intermediate gear that inputs the rotation of the cutting input shaft 22 to the relay shaft 63, and 35C is a chain.
Although not shown, the cutting drive gear 35 is provided inside the cutting input shaft 22, the driven cutting gear 35A of the cutting drive gear 35 is provided outside the relay shaft, and the second mower drive gear 36 is on the right side of the transport elevator 14. It may be attached to the cutting input shaft 22 of the above.
In the reel 12 of the cutting device 4, the center of a pair of left and right slat frames 71 is attached to the reel rotation shaft 70, and the slat bar 73 is attached to the tip of the slat arm 72 protruding in the radial direction of the slat frame 71 in a star shape. Each slat bar 73 is configured by attaching a reel tine 75, the slat bar 73 is provided with a large number of claws 74 in the left-right direction, and each slat arm 72 has a U-shaped cross section and is tapered toward the tip side. The connecting member 77 is attached so as to connect the tips of the slats arms 72 (FIG. 10).

Therefore, since each slat arm 72 is formed in a tapered shape with a U-shaped cross section, the rigidity can be improved. Since the connecting member 77 also serves as a bearing for the slat bar 73, durability can be improved.
The connecting member 77 is provided with a predetermined gap with respect to the bearing 78 provided on the slat arm 72, and the end portion 79 of the adjacent connecting member 77 is fastened together.
Therefore, even if the connecting member 77 is provided on the bearing 78 of each slat arm 72, lubrication to the bearing 78 is facilitated.
The bearing 78 has a shape provided with a semicircular recess 80, and the semicircular recess 80 of each bearing 78 is overlapped so as to face each other to support the slat bar 73, and the slat bar 73 sandwiched between the overlapping bearings 78 is lubricated. A lubrication hole 82 is provided (FIG. 11).

Therefore, the supporting sliding portion of the slat bar 73 can be lubricated from the lubrication hole 82, so that the durability can be improved.
FIG. 12 shows another embodiment of the reel 12, and the upper bearing 78 of the upper and lower bearings 78 is an upper bearing 84 formed of a thin plate member.
Therefore, since the upper bearing 84 is arranged lower than the slat bar 73 and the slat bar 73 is covered by the upper bearing 84, the slat bar 73 can be held uniformly and the rattling of the mounting (shaft mounting) portion of the slat bar 73 is prevented. It can stabilize the operation.
FIG. 13 shows another embodiment of the upper bearing 84 of the reel 12, and the upper bearing 84 is bent so as to project the intermediate portion outward to have a V-shaped recess 85.
Therefore, since the upper bearing 84 is arranged lower than the slat bar 73 and the slat bar 73 is covered by the upper bearing 84, the slat bar 73 can be held uniformly and the rattling of the mounting (shaft mounting) portion of the slat bar 73 is prevented. It can stabilize the operation.

FIG. 14 shows another embodiment of the reel 12, and has a configuration in which the slat bar 73 on the bearing 78 is pressed by the tip of the end portion 79 of the connecting member 77.
Therefore, it can be configured simply.
FIG. 15 shows another embodiment of the reel 12, and the tip of the end portion 79 of the connecting member 77 is bent outward along the outer circumference of the slat bar 73 to press the slat bar 73 on the bearing 78.
Therefore, it can be configured simply.
FIG. 16 shows another embodiment of the reel 12, in which the bearing 78 is formed in a square column shape, an insertion hole 86 is provided in the center of the bearing 78, and the slat bar 73 is inserted into the insertion hole 86.

FIG. 17 shows another embodiment of the reel 12, in which the semicircular recess 80 of the bearing 78 is formed downward, and the slat bar 73 is pushed and attached from above by the semicircular recess 80 of each bearing 78.
FIG. 18 shows another embodiment of the reel 12, and the spacer plate 88 is sandwiched between the mounting member 87 provided at the tip of each slat arm 72 and the bearing 78 for mounting.
Therefore, it is possible to prevent rattling of the mounting (shaft mounting) portion of the slat bar 73 and stabilize the operation, and when the spacer plate 88 which is the sliding contact portion of the slat bar 73 is worn, the spacer plate 88 can be replaced. It's good, so it's easy to maintain.

If the spacer plate 88 is made of synthetic resin, the weight of the reel 12 can be reduced, the work noise can be made quieter, and the oil-free performance can be improved as compared with the metal one.
The scraping locus of the scraping body 89 of the auger 8 and the entrance portion 90 of the table 11 are made substantially the same (FIG. 19).
Therefore, the crops can be smoothly taken into the table 11, the front-rear length of the table 11 can be shortened, the weight of the cutting device 4 can be reduced, and the front-rear weight balance of the machine body can be improved.
Further, the bottom surface 91 of the table 11 is set at a low cutting height position so that the bottom surface 91 of the table 11 is inclined forward or at most substantially parallel to the field scene.
Therefore, culm spillage can be reduced, drainage can be facilitated, and workability can be improved.

The tip locus of the scraping body 89 of the auger 8 and the rotation locus of the reel tine 75 of the reel 12 wrap in the adjusted rearmost state of the reel 12.
Therefore, the suction of the reel 12 and the suction of the auger 8 can be taken over satisfactorily.
Arrange so that the extension line of the cutting blade 13 of the cutting device 4 and the lower surface of the auger 8 are substantially the same height.
Therefore, the height at which the crop cut by the cutting blade 13 is lifted to the upper surface of the bottom surface 91 of the auger 8 can be reduced, and the stagnation of the crop on the bottom surface 91 can be suppressed.
The reel 12 is configured so that the front-rear position can be adjusted with respect to the auger 8. When the reel 12 is positioned at the rearmost side, at least the locus center of the reel tine 75 of the reel 12 is close to the auger 8 center in the vertical position (FIG. 19).
Therefore, the scraping performance of the fallen grain culm of the reel 12 can be improved.

Further, when the reel 12 is positioned on the rearmost side, if the locus center of the reel tine 75 of the reel 12 is lower than the center of the auger 8 in the vertical position, the scraping performance of the fallen grain culm of the reel 12 can be further improved. ..
Further, the transmission mechanism of the reel 12 is arranged on the uncut side of the cutting device 4, and the radiator cover 93 provided between the control unit 6 and the grain tank 5 and the weed body 94 of the cutting device 4 are substantially identical in plan view. Arrange on the line (Fig. 21).
Therefore, it is easy to mow at the ridge and the wall.
Further, the transmission mechanism of the reel 12 is arranged on the uncut side of the cutting device 4, and the crawler 95 on the already cut land side of the traveling device 2 is arranged so as not to come out from the cutting width of the cutting blade 13 of the cutting device 4 ( FIG. 21).

Therefore, the crawler 95 of the traveling device 2 can perform the cutting and threshing work without stepping on the crops in the field.
Further, the outer surface of the Glen tank 5 and the cursive script 94 of the cutting device 4 are arranged on substantially the same straight line in a plan view.
Therefore, it is easy to mow at the ridge and the wall.
Further, the outer surface of the Glen tank 5 and the weed body 94 of the cutting device 4 are arranged on substantially the same straight line in a plan view.
Therefore, it is easy to mow at the ridge and the wall.
Further, the transmission mechanism of the reel 12 is arranged on the uncut side of the cutting device 4, and the transmission mechanism of the reel 12 is surrounded by the tip position of the discharge auger 96 for discharging grains from the grain tank 5 in a plan view. Reel cover 97 to be inside from the outer surface.
Therefore, the tip of the discharge auger 96 can prevent contact with an obstacle.

Further, in the side view, the tip position of the discharge auger 96 when retracted is positioned above the reel cover 97 and above the tip within the front-rear range of the reel cover 97.
Therefore, the length of the discharge auger 96 can be safely set to the maximum length.

(Action of Embodiment)
The machine is run, and the grain culms in the field cut by the cutting device 4 are supplied to the threshing chamber of the threshing device 3 to thresh.
The cutting device 4 hangs a belt 28 between the counter pulley wall insert pulley 28 provided at one end of the threshing counter shaft 27 provided so as to penetrate the front portion of the wall insert 16 of the threshing device 3 and the output pulley 27 of the engine 20. An intermediate pulley 29 is separately provided on the threshing counter shaft 27, and a belt 32 is hung around the intermediate pulley 29 between the intermediate pulley 31 and the intermediate pulley 31 provided on the handling cylinder transmission shaft 30, and the intermediate pulley 29 is separately provided on the handling cylinder transmission shaft 30. Since the belt 34 is hung between the pulley 33 and the cutting input pulley 23 of the cutting input shaft 22 to form the forward rotation drive unit S, the forward rotation of the engine 20 is transmitted to the cutting input pulley 23 and the transfer elevator 14 It is transmitted through the wall insert and the cutting work is performed.

Since the belt 40 is hung between the intermediate pulley 39 provided at the other end of the threshing counter shaft 27 in the front portion of the threshing device 3 and the wall insert pulley 38 provided on the rotating shaft of the wall insert 16, the wall insert 16 is the engine 20. The forward rotation of is transmitted and rotates.
A rear intermediate shaft 41 is provided in a portion from the rear side of the grain removing device 3, a rear intermediate pulley 42 of the rear intermediate shaft 41, and a first pulley 43 provided on the rotating shaft of the first conveyor 18. Since the belt 45 is hung around the second pulley 44 provided on the rotation shaft of the second conveyor 19, the forward rotation of the engine 20 is transmitted to the first conveyor 18 and the second conveyor 19 to rotate.

The cutting device 4 is configured to transmit the rotation of the engine 20 via the transport elevator 14, and the drive shaft at the base of the transport elevator 14 is also used as the cutting input shaft 22 to the cutting device 4, and the outer end of the cutting input shaft 22. Since the cutting input pulley 23 is provided on the side and the forward rotation of the engine 20 is transmitted to the cutting input pulley 23 by the forward rotation drive unit, the cutting input pulley 23 provided on the right side of the transport elevator 14 is hung around as in the conventional case. It is not necessary to open the grain tank 5 for attaching / detaching / replacing the cutting transmission belt 25, and the cutting transmission belt 25 can be replaced from the left side of the combine body, so that the belt replacement work can be facilitated.

The rotational transmission to the harvesting input pulley 23 is driven by the threshing and threshing counter pulley 26, is provided so as to penetrate the threshing counter shaft 27 in the front portion of the wall insert 16 of the threshing device 3, and is provided at the outer end of the threshing counter shaft 27. Since the cutting transmission belt 25 is hung between the threshing counter pulley 26 and the cutting input pulley 23, the cutting transmission belt 25, which is frequently replaced due to damage, is removed compared to the conventional one. It can be replaced from the left side of the combine harvester without any need, and the belt replacement work can be facilitated.

Since the wall insert pulley 28 is arranged between the wall insert pulley 28 for inputting rotation to the wall insert 16 and the wall insert pulley 23, the installation space for the wall insert pulley 23, the threshing counter pulley 26, and the wall insert pulley 28 is reduced. The arrangement can be rationalized, and the belt replacement work of the cutting transmission belt 25 can be facilitated.

A wall insert output pulley 29 is provided on the threshing counter shaft 27, a wall insert belt 30 is hung between the wall insert output pulley 29 and the wall insert pulley 28, and a sorting unit output pulley 31 is provided on the threshing counter shaft 27. The threshing counter pulley 26, the wall insert output pulley 29, and the sorting unit output pulley 31 provided on the threshing counter shaft 27 by hanging the sorting unit belt 33 between the output pulley 31 and the sorting unit input pulley 32, at least the threshing counter. Since the pulley 26 is arranged on the outermost side, the cutting transmission belt 25, which is frequently replaced due to damage, can be replaced without removing other belts, and the belt replacement work can be facilitated.

Further, since the threshing counter shaft 27 is arranged in the order of the sorting unit output pulley 31, the threshing counter pulley 26, and the wall insert output pulley 29 from the inside, the cutting transmission belt 25 can be replaced by simply removing the wall insert output pulley 29. The length of the threshing counter shaft 27 can be shortened, and the bending moment applied to the threshing counter shaft 27 can be reduced.
Further, the cutting input shaft 22 of the transport elevator 14 is provided with a cutting drive gear 35 for driving the cutting blade 13 and the auger 8 inside the cutting input pulley 23, and a second mower drive gear 36 is provided inside the cutting drive gear 35. Therefore, the cutting transmission belt 25, which is frequently replaced due to damage, can be replaced without removing other belts, and the belt replacement work can be facilitated.

Further, since the base of the tension arm 38 of the tension pulley 37 that tensions the cutting transmission belt 25 is attached to the cutting input shaft 22, the tension pulley 37 of the cutting transmission belt 25 can be easily separated from the cutting transmission belt 25. It is possible to easily replace the cutting transmission belt 25.
Further, since the rotation fulcrum shaft rotation fulcrum shaft 44 of the tension arm tension arm 43 of the tension pulley 42 that tensions the wall insert belt 30 is arranged below the axis of the threshing counter pulley 26, the threshing counter shaft 27 is placed below the axis of the threshing counter pulley 26. The shaft can be arranged close to the wall insert shaft 46, and the threshing counter shaft 27 can be arranged appropriately separated from the cutting input shaft 22.

The cutting input shaft 22 is attached to the front plate 52 of the grain removal device 3 by a pair of left and right support members 50 and 51, and the outer support member 51 that supports the right side of the cutting input shaft 22 is composed of a pair of left and right support metals 53 and 54. Then, the cutting drive gear 35 that hooks the cutting drive chain 55 on the cutting input shaft 22 between the support metal 53 and the support metal 54, and the second mower drive gear 35 that hooks the second mower drive chain 57. Since the 36 is provided, the cutting input shaft 22 is held by the support metal 53 and the support metal 54 of the support member 51 in the vicinity of the cutting input pulley 23 to secure the support strength, and the maintenance is easy because the cutting input shaft 22 is divided into two parts. Can be improved.

Since the cutting input shaft 22, the cutting drive gear 35, and the second mower drive gear 36 have a so-called spline coupling or key coupling, the bearings of the support metal 53 and the support metal 54 are prevented from being damaged while ensuring the rotation transmission efficiency. ..
In another embodiment of the transmission of FIGS. 8 and 9, the left side portion of the cutting input shaft 22 is extended to the vicinity of the left side surface of the threshing device 3 to form an extension portion extension portion 61, and the cutting input pulley 23 is provided in the extension portion 61. Therefore, the support member 51 can be composed of only the support metal 53.

1 ... Aircraft frame, 2 ... Traveling machine, 3 ... Grain removal device, 4 ... Cutting device, 5 ... Glen tank, 6 ... Control unit, 11 ... Table, 12 ... Reel, 13 ... Cutting blade, 14 ... Transport elevator, 15 ... Handling body, 16 ... Wall insert, 17 ... Swinging sorting shelf, 18 ... First conveyor, 19 ... Second conveyor, 20 ... Engine, 22 ... Cutting input shaft, 23 ... Cutting input pulley, 25 ... Cutting transmission belt, 26 ... Gear removal counter pulley, 27 ... Graining counter shaft, 28 ... Wall insert pulley, 29 ... Wall insert output pulley, 30 ... Wall insert belt, 31 ... Sorting machine output pulley, 32 ... Sorting machine input pulley, 33 ... Sorting machine belt, 35 ... Cutting drive gear, 36 ... Second more drive gear, 37 ... Tension pulley, 38 ... Tension arm, 39 ... Mounting shaft, 40 ... Left front frame, 42 ... Tension pulley, 43 ... Tension arm, 44 ... Rotating fulcrum shaft, 46 ... Wall insert shaft, 50 ... Support member, 51 ... Support member, 52 ... Front plate, 53 ... Support metal, 54 ... Support metal, 55 ... Mowing drive chain, 57 ... Second mower drive chain, 60 ... Unit bearing, 61 ... Extension , 63 ... relay shaft, 70 ... reel rotation shaft, 71 ... slat frame, 72 ... slat arm, 73 ... slat bar, 75 ... reel tine, 77 ... connecting member, 78 ... bearing, 79 ... end, 80 ... half circle Recess, 82 ... lubrication hole, 84 ... upper bearing, 85 ... V-shaped recess, 86 ... insertion hole, 87 ... mounting member, 88 ... spacer plate, 89 ... scraping body, 90 ... inlet, 91 ... bottom, 93 ... Radiator cover, 94 ... Weed body, 95 ... Crawler, 96 ... Discharge auger, 97 ... Reel cover.

Claims (6)

A threshing device (4) for cutting the grain of the field is provided in front of the traveling device (2), and a threshing device (3) connected to the harvesting device (4) by a transport elevator (14) above the traveling device (2). ) Is provided, a grain tank (5) is provided on the side of the threshing device (3), and the reaping device (4) is configured to transmit the rotation of the engine (20) via the transfer elevator (14). The drive shaft at the base of 14) is also used as the cutting input shaft (22) to the cutting device (4), and the cutting input pulley (23) is provided on the outer end side of the cutting input shaft (22), and the cutting input pulley (23) is provided. ) Is configured to transmit the drive rotation of the engine (20) from the threshing counter pulley (26) provided on the threshing counter shaft (27) provided so as to penetrate the front portion of the wall insert (16) of the threshing device (3). Combine harvester. In claim 1, the threshing counter pulley (26) is a combine arranged between the wall insert pulley (28) for inputting rotation to the wall insert (16) and the cutting input pulley (23). In claim 1 or 2, the threshing counter shaft (27) includes a wall insert output pulley (29) and a sorting unit output pulley (31) that transmits drive rotation to the swing sorting shelf of the threshing device (3). Of the threshing counter pulley (26), the wall insert output pulley (29), and the sorting unit output pulley (31) provided on the threshing counter shaft (27), at least the threshing counter pulley (26) was arranged on the outermost side. combine. In claim 1 or 2, or 3, the cutting input shaft (22) of the transport elevator (14) is rotationally transmitted to the drive unit of the cutting device (4) inside the cutting input pulley (23). A combine in which a drive gear (35) is provided and a second mower drive gear (36) is provided inside the cutting drive gear (35). In any one of claims 1 to 4, the base of the tension arm (38) of the tension pulley (37) that tensions the cutting transmission belt (25) is attached to the cutting input shaft (22) of the transport elevator (14). Combine. In any one of claims 1 to 5, the cutting input shaft (22) is attached to the front plate front plate (52) of the threshing device (3) by a pair of left and right support members (50) and (51), and the cutting input is made. The outer support member (51) that supports the right side of the shaft (22) is composed of a pair of left and right support metals (53) and (54), and a cutting input shaft between the support metal (53) and the support metal (54). A combine in which a cutting drive gear (35) and a second mower drive gear (36) are provided in (22).

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