JP2021100433A - Combine harvester - Google Patents

Abstract

To solve a problem that attachment of a cylindrical member is troublesome and maintenance is not easy due to a configuration that the cylindrical member is attached inside a case of a conveyance lift via an attachment member.SOLUTION: A combine harvester includes a conveyance lift 15 which feeds and transfers grain culm reaped by a reaping device 4 with a transfer body 26. In the conveyance lift 15, a base side rotation roller 19 is rotatably attached to a rotation input shaft 16 at a base of the conveyance lift 15, a front end side rotation roller 21 is rotatably attached to the front end side of the conveyance lift 15, a drive gear 23 is arranged at a middle part of longitudinal direction of the lift case 17 while being supported by a middle part drive shaft 22, and a transfer chain 25 is configured by winding around the drive gear 23, the base side rotation roller 19, and the front end side rotation roller 21. The drive gear 23 is arranged above a virtual line connecting rotation axes of the base side rotation roller 19 and the front end side rotation roller 21 in a side view.SELECTED DRAWING: Figure 4

Description

The present invention relates to a combine.

Conventionally, a cutting device for cutting grain grains in a field is connected to a grain removal device via a transport elevator that transports the harvested grain grains, and a drive gear is provided on the rotary input shaft on the base side of the transport elevator to provide a drive gear on the tip side of the transport elevator. A rotary drum is provided, and an endless transport chain provided with a plurality of transport bodies is hung between the drive gear and the rotary drum at a predetermined interval, and the outer circumference of the rotary input shaft is surrounded so that the transport grain is not wound. A configuration surrounded by a non-rotating tubular member whose position is fixed is known (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2006-149244

In the above-mentioned known example, since the tubular member is mounted in the case of the transport elevator via the mounting member (stay), there is a problem that the mounting of the tubular member is troublesome and maintenance is not easy.

In the present application, the transmission configuration of the transport elevator is devised to prevent the transport culm from wrapping around the rotary input shaft and to facilitate the maintenance.

In the invention of claim 1, the grain shavings cut by the cutting device 4 provided in front of the traveling device 2 are transferred to the grain removing device 3 provided above the traveling device 2 and the transport body 26 provided in the endless transport chain 25. In the combine provided with the transport elevator 15 for supplying and transporting, the transport elevator 15 rotatably attaches the base side rotating roller 19 to the rotary input shaft 16 at the base of the transport elevator 15, and the tip side of the transport elevator 15 is the tip side. A side rotating roller 21 is rotatably provided, and a drive gear 23 for driving the transport chain 25 is supported by an intermediate drive rotating shaft 22 in the middle portion of the elevator case 17 in the front-rear direction. The transport chain 25 is hung around the roller 19 and the tip-side rotary roller 21, and the drive gear 23 rotates the rotary input shaft 16 to which the base-side rotary roller 19 is attached and the tip-side rotary roller 21 in a side view. It is a combine arranged above the virtual line connecting the center with the shaft 20.

In the invention of claim 2, a state in which the inner pulley 28 and the outer pulley 29 provided on the outside of the inner pulley 28 can rotate independently of the rotation input shaft 16 on the rotation input shaft 16 projecting to the right side of the transport elevator 15. The input belt 30 for inputting the rotation of the engine is hung around the inner pulley 28, and the belt 36 is hung between the outer pulley 29 and the driven pulley 35 of the intermediate drive rotation shaft 22 to which the drive gear 23 is attached. It is a combined product.

In the invention of claim 3, the combine is set so that the distance A between the base-side rotary roller 19 and the drive gear 23 is set to be larger than the distance B between the drive gear 23 and the tip-side rotary roller 21. is there.

In the invention of claim 4, the drive sprocket drive gear 23 is movable in the vertical direction to form a tension mechanism T of the transport chain 25, and the tension mechanism T is a combine that pulls the drive gear 23 upward. is there.

In the invention of claim 5, the base-side rotating roller 19 is a combine formed by dividing a cylindrical member constituting the cylindrical drum 50 into two parts in the radial direction with respect to the axial direction of the cylindrical drum 50. ..

In the invention of claim 6, the left end of the tip side rotating shaft 20 to which the tip side rotating roller 21 is attached is projected to the left side from the elevator case 17 of the transport elevator 15, and the tip side rotating shaft 20 is projected to the left side of the elevator case 17. The intermediate output shaft 57 to which the intermediate gear 55 that rotationally outputs the auger 13 and the wobble mechanism 56 that rotationally outputs the cutting blade 12 are attached is made into a detachably attached combine.

In the invention of claim 1, a base-side rotary roller 19 is rotatably provided on the rotary input shaft 16 at the base of the transfer elevator 15, and a tip-side rotary roller 21 is rotatably provided on the tip side of the transfer elevator 15, respectively, in front of and behind the elevator case 17. A drive gear 23 is provided in the middle portion in the direction by an intermediate portion drive rotation shaft 22, and the side surface shape of the transport elevator 15 is a "convex shape" by projecting the portion of the drive gear 23, so that the rotation input shaft 16 has a shape. Since there is no drive sprocket for the transport chain 25 and the rotary input shaft 16 is provided with the base side rotary roller 19, it is possible to prevent the transport gear from wrapping around the rotary input shaft 16 and the intermediate portion of the transport chain 25. Is supported by the drive gear 23, and the drive gear 23 is hung around the upper return moving transport chain 25A.
It is possible to prevent the culm wrapping around the drive gear 23, and further reduce the fluttering movement of the carrier 24.

In the invention of claim 2, the rotation input shaft 16 projecting to the right side of the transport elevator 15 is provided with an inner pulley 28 and an outer pulley 29 provided outside the inner pulley 28, and the rotation of the engine is input to the inner pulley 28. Since the input belt 30 is hung around and the belt 36 is hung between the outer pulley 29 and the driven pulley 35 of the intermediate drive rotating shaft 22 to which the drive gear 23 is attached, the belt 36 that transmits the rotation to the drive gear 23 is rotated. Can be easily replaced.

In the invention of claim 3, since the distance A between the base side rotary roller 19 and the drive gear 23> the distance B between the drive gear 23 and the tip side rotary roller 21, the distance B is below the upper return moving transport chain 25A. The grain transport passage can be secured, and the tension mechanism T of the transport chain 25 can be easily configured by configuring the drive gear 23 so as to be movable up and down.

In the invention of claim 4, the drive sprocket drive gear 23 is movable in the vertical direction to form the tension mechanism T of the transport chain 25, and the tension mechanism T is configured to pull the drive gear 23 upward. The configuration can be simplified, the cost can be reduced, and not only the assembly becomes easy, but also the adjustment becomes easy.

In the invention of claim 5, since the base side rotating roller 19 is formed by dividing the cylindrical drum 50 into two parts in the radial direction with respect to the axial direction of the cylindrical drum 50, the base side rotating roller 19 can be easily formed. It can be attached, it is possible to avoid attaching the drive gear of the transport chain 25 to the rotary input shaft 16, and it is possible to prevent a large amount of grain from being wound around the rotary input shaft 16, and in particular, it is handled as a long cylinder drive gear. Prevents clogging due to winding rope between the two to the body.

In the invention of claim 6, an intermediate output shaft in which an intermediate gear 55 that rotationally outputs to the auger 13 and a wobble mechanism 56 that rotationally outputs the cutting blade 12 are attached to a tip-side rotating shaft 20 that protrudes to the left side of the elevator case 17. Since the 57 is detachably attached, the transmission configuration to the cutting blade 12 and the auger 13 can be simplified, and the transmission chain provided on the left side of the conventional elevator case 17 can be abolished and replaced by the transfer chain 25. It is possible to reduce the number of points and reduce the cost.

Side view of the combine. Schematic perspective view of the transport elevator. The same plan view. Rotational transmission path diagram of the main part of the combine. Longitudinal side view of the transport elevator. Longitudinal side view of another embodiment of the transport elevator. Longitudinal side view of another embodiment of the transport elevator. Longitudinal side view of another embodiment of the transport elevator. Longitudinal side view showing the tension mechanism of the drive gear of the transport elevator. The same vertical front view. Longitudinal side view of another embodiment of the tension mechanism of the drive gear of the transport elevator. Longitudinal side view of another embodiment of the tension mechanism of the drive gear of the transport elevator. A side view of the vicinity of the tension mechanism of the belt hung on the driven pulley of the drive rotation shaft in the middle part of the transport elevator. The same plan view. A side view of another embodiment of the tension mechanism. A side view of another embodiment of the tension mechanism. A side view of another embodiment of the tension mechanism. A side view of another embodiment of the tension mechanism. The plan view of the embodiment in which the cover is provided above the tension mechanism. The assembled state plan view of the transmission part near the rotary shaft on the tip side of the transport elevator. The same plan view.

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 reaping device 4 has a weeding device 10 provided in front, a scraping reel 11 for scraping the culm, a cutting blade 12 for reaping the scraped culm, and an auger 13 for collecting the culm. It is attached to 14 and configured. The cutting device 4 attaches the tip of the transfer elevator (transport device) 15 to the table 14, and the base of the transfer elevator 15 is connected to the threshing chamber (not shown) of the threshing device 3 (FIG. 1).

The rotation input shaft 16 at the base of the transfer elevator 15 is mounted on the machine body side, and the transfer elevator 15 and the cutting device 4 are configured to rotate up and down with the rotation input shaft 16 as a rotation fulcrum.

The rotary input shaft 16 is rotatably mounted on the left and right side plates 18 of the elevator case 17 of the transfer elevator 15 (FIG. 2). A base-side rotating roller 19 is fixedly attached to the rotating input shaft 16 in the elevator case 17. The tip side rotating shaft 20 is mounted on the tip side of the elevator case 17, and the tip side rotating roller 21 is rotatably attached to the tip side rotating shaft 20 in the elevator case 17. An intermediate drive rotary shaft 22 is mounted on the middle portion of the elevator case 17 in the front-rear direction, a drive gear 23 is fixed to the intermediate drive rotary shaft 22 in the elevator case 17, and the drive gear 23 and the base side rotary roller are fixed. An endless transport chain 25 provided with a plurality of transport bodies (slats) 24 is hung around the 19 and the tip side rotating roller 21 at predetermined intervals (FIG. 2).

That is, the rotation from the engine is input to the rotation input shaft 16 which is the vertical rotation fulcrum of the elevator case 17 of the transfer elevator 15, but the drive gear 23 for driving the transfer chain 25 is the base side rotary roller 19 and the tip side rotary roller. It is provided on the intermediate drive rotating shaft 22 between 21.

The side surface shape of the elevator case 17 is such that the portion of the intermediate portion drive rotary shaft 22 (drive gear 23) is projected upward from the virtual line L connecting the base side rotary roller 19 and the tip side rotary roller 21 to be "convex". “Shape” (FIG. 5), and triangular transport by the tip side rotary shaft 20 (tip side rotary roller 21), the intermediate drive rotary shaft 22 (drive gear 23), and the rotary input shaft 16 (base side rotary roller 19). Form 25 chain lines.

Therefore, as compared with the case where the transfer chain 25 is hung around the tip side roller and the base side drive gear, the intermediate portion of the transfer chain 25 is supported by the drive gear 23, so that the upper return moving transfer chain 25A and the transfer body 24 fluttering can be reduced.

The rotary input shaft 16 projecting to the right side of the elevator case 17 is provided with an inner pulley 28 provided in a double shape and an outer pulley 29 provided outside the inner pulley 28, and the outer pulley 29 is more than the inner pulley 28. It is provided on the right side (Fig. 3).

In this case, the belt strength is set as inner pulley 28 (double belt, two belts)> outer pulley 29 (series, one belt).

Therefore, when the load is overloaded, the outer belt 36, which has a low belt strength and is hung around the outer pulley 29, which will be described later, is cut off. Therefore, the outer belt 36 may be replaced, and maintenance becomes easy.

The inner pulley 28 and the outer pulley 29 are provided in a fixed state on the rotation input shaft 16, and an input belt 30 for inputting the rotation of the engine is hung around the inner pulley 28. Reference numeral 31 is an intermediate output pulley, and 32 is an intermediate output shaft, which transmits the drive rotation of the engine to the intermediate output shaft 32. 33 is an engine, 33A is a handling cylinder, 33B is a wall insert, 33C is a reverse rotation transmission shaft, and 33E is a reverse input pulley.

A belt 36 is hung around the outer pulley 29 of the rotation input shaft 16 between the outer pulley 29 of the elevator case 17 and the driven pulley 35 provided on the intermediate drive rotation shaft 22 of the elevator case 17, and the elevator case is passed through the driven pulley 35. The drive gear 23 in the 17 is rotated.

Then, the base side rotating roller 19 and the tip side rotating roller 21 are rotated by the driving rotation of the driving gear 23.

Therefore, since the belt 36 that transmits the drive to the transport elevator 15 is hung between the outer pulley 29 and the driven pulley 35, it can be easily replaced.

That is, conventionally, since the inner pulley 28 of the rotary input shaft 16 corresponds to the driven pulley 35 and the input belt 30 corresponds to the input belt 36, it is necessary to replace the input belt 30 and remove the input belt 30. Discharges the grains in the Glen tank 5, then opens the outside of the Glen tank, and then removes the grain removal belt (not shown) leading to the intermediate output shaft 32, and finally the input belt 30 is replaced. In the present invention, only the belt 36 on the side of the elevator case 17 is replaced, so that the belt can be easily replaced when the transport is clogged.

Further, since the rotary input shaft 16 has the drive sprocket of the transport chain 25, a large amount of grain culms are wound around, but in the present invention, the base side rotating roller 19 is used to prevent the grain culms from wrapping around.

Further, conventionally, since the tension of the transport chain 25 is adjusted by moving the tip side rotating roller 21 back and forth, the distance between the base side rotating roller 19 and the tip side rotating roller 21 fluctuates, so that the grains in the elevator case 17 are used. Although the elevator transfer is not stable, in the present invention, since the tension of the transfer chain 25 can be adjusted by moving the drive gear 23, the distance between the base side rotary roller 19 and the tip side rotary roller 21 does not change, and the grain transfer is performed. Can be stabilized.

The left end of the tip side rotating shaft 20 of the tip side rotating roller 21 is projected from the elevator case 17 to the left side surface, and the cutting blade / auger transmission portion 37 for driving the cutting blade 12 and the auger 13 is provided at the protruding portion.

Therefore, conventionally, the transmission chain for driving the cutting blade 12 and the auger 13 provided on the left side of the elevator case 17 can be abolished and replaced with the transfer chain 25, so that the number of parts can be reduced and the cost can be reduced. be able to.

As shown in FIG. 6, when the tension roller 23A is brought into contact with the transport chain 25 between the drive gear 23 and the tip side rotary roller 21, the drive rotation transmission efficiency is improved, which is preferable.

In the side view, the convex shape of the transport elevator 15 is such that the distance between the rotary input shaft 16 (base side rotary roller 19) and the intermediate drive rotary shaft 22 (drive gear 23) A> intermediate drive rotary shaft 22 (drive). The distance B between the gear 23) and the tip side rotating shaft 20 (tip side rotating roller 21) is set (FIG. 7).

Therefore, a grain culm transport passage can be secured below the upper return moving transport chain 25A, and the tension mechanism T of the transport chain 25 can be easily configured by configuring the drive gear 23 so that it can move up and down.

In the side view, the convex shape of the transport elevator 15 is such that the distance A between the rotary input shaft 16 (base side rotary roller 19) and the intermediate drive rotary shaft 22 (drive gear 23) <intermediate drive rotary shaft 22 (drive). The distance B between the gear 23) and the tip side rotating shaft 20 (tip side rotating roller 21) is set (FIG. 8).

Therefore, a grain culm transport passage can be secured below the upper return moving transport chain 25A, and the tension mechanism T of the transport chain 25 can be easily configured by configuring the drive gear 23 so that it can move up and down.

The drive sprocket drive gear 23 is movable, the tension mechanism T of the transport chain 25 is used, and the tension mechanism T is configured to pull the drive gear 23 upward (FIG. 9).

Therefore, the configuration can be simplified, the cost can be reduced, the assembly becomes easy, and the adjustment becomes easy.

Adjustable stays 40 are provided on both sides of the intermediate drive rotating shaft 22 of the drive gear 23 (tension drum is possible), and the screw shaft 41 is fixed to the upper portion of the adjusting stay 40. The elevator case 17 is provided with a support plate 42, the upper portion of the screw shaft 41 is mounted on the support plate 42 (FIGS. 9 and 10), and the adjusting bolt 43 is screwed on the screw shaft 41 protruding upward from the support plate 42. Then, the adjusting bolt 43 is rotated to move the intermediate drive rotating shaft 22 up and down to adjust the tension.

Reference numeral 44 denotes a locknut that prevents the adjusting bolt 43 from loosening. The support plate 42 is fixed to the elevator case 17 side by any means.

Therefore, the tension mechanism T of the transport chain 25 can be configured by the left and right adjusting stays 40 and the screw shaft 41, and the configuration can be simplified and the cost can be reduced. Further, since the tension mechanism T positions all of the adjusting stay 40, the screw shaft 41, and the support plate 42 on the outside of the elevator case 17, assembly can be facilitated and adjustment can be easily performed.

In FIG. 11, a tension mechanism T is provided on the rearward inclined portion 46 on the upper surface of the elevator case 17.

In FIG. 9, a tension mechanism T is provided on the front inclined portion 47 on the upper surface of the elevator case 17.

In FIG. 12, a flat surface portion 48 is formed between the rear inclined portion 46 and the front inclined portion 47 of the elevator case 17, and the tension mechanism T is provided on the flat surface portion 48.

The base-side rotating roller 19 is configured to integrally form a cylindrical drum and rotate together with the carrier 24.

Therefore, the winding of the conveyed grain culm of the rotary input shaft 16 is prevented.

That is, when the drive gear is provided on the rotary input shaft 16, the drive gear of the rotary input shaft 16 is entangled with the grain and a rotating phenomenon occurs, the rotary input shaft 16 has a small diameter, and the drive gear and the handling barrel are used in the long run. Will be wound around the rotary input shaft 16 after being in a towed state.

In the present invention, since the rotary input shaft 16 is provided with the base side rotary roller 19 having a diameter larger than that of the rotary input shaft 16 instead of the drive gear, it is difficult for the transport grain to get entangled with the base side rotary roller 19 in the first place. Since the base-side rotating roller 19 does not have a driving gear, there are few grains that rotate together with the base-side rotating roller 19, so that the winding of the grains around the rotating input shaft 16 is prevented.

Further, in the present invention, since the drive gear 23 is provided in the transport chain 25A through which the transport culm does not pass, the transport culm does not get entangled with the drive gear 23.

Bearings (metals) are provided on both the left and right sides of the base-side rotating roller 19, and the cylindrical drum is formed by dividing a cylindrical member into two parts in the front-rear direction. On the other hand, the shaft is rotatably mounted.

Therefore, since the attachment of the drive gear of the transport chain 25 to the rotary input shaft 16 is avoided, it is possible to prevent a large amount of tug of war from being wound around the rotary input shaft 16, and in particular, the drive gear of the long culm and the handling cylinder. Prevents clogging due to tug-of-war winding between the two.

Then, as shown in FIG. 13, the tension roller 60 is brought into contact with the upper surface of the belt 36, and the rear portion of the tension arm 61 to which the tension roller 60 is attached is rotatably mounted on the right side plate 18 of the elevator case 17. An intermediate arm 61A is provided in a fixed state at the rear of the tension arm 61, the tip of the tension rod 62 is attached to the intermediate arm 61A via a tension spring 64, and the base of the tension rod 62 is screwed back and forth to the attachment portion 63. Let me.

Therefore, when the tension rod 62 is rotated and pulled backward, the tension roller 60 tensions the belt 36, and when the tension rod 62 is rotated and moved forward, the tension roller 60 can relax the belt 36. The tension mechanism of the belt 36 hung on the outer pulley 29 can be easily adjusted and assembled.

FIG. 15 shows another embodiment of the tension mechanism of the belt 36, in which the rear portion of the tension arm 61 to which the tension roller 60 is attached is rotatably mounted on the right side plate 18 of the elevator case 17, and the front portion of the tension arm 61 is mounted. The tension roller 60 is attached to the front and rear intermediate portions of the tension arm 61, the upper portion of the tension rod 62 is attached via the tension spring 64, and the lower portion of the tension rod 62 is moved up and down to the attachment portion 63 attached to the right side plate 18 of the elevator case 17. Screw it freely.

Therefore, when the tension rod 62 is rotated and pulled downward, the tension roller 60 tensions the outer pulley 29, and when the tension rod 62 is rotated and moved upward, the tension roller 60 can relax the belt 36. It facilitates adjustment and assembly of the tension mechanism of the belt 36.

FIG. 16 shows another embodiment of the tension mechanism of the belt 36, and the tension roller 60 of the belt 36 is provided on the outer pulley 29 side.

Therefore, since the tension roller 60 is arranged next to the operation seat (not shown) of the control unit 6, tension adjustment is easy.

FIG. 17 shows another embodiment of the tension mechanism of the belt 36, and the tension roller 60 of the belt 36 is provided on the driven pulley 35 side.

Therefore, since there are few components around the driven pulley 35, it is easy to secure an installation space for the tension mechanism.

As shown in FIG. 18, a belt cover 70 for covering the belt 36 is provided above the left side surface of the elevator case 17.

Therefore, since the belt 36 is arranged on the control portion 6 side of the elevator case 17, the belt cover 70 surrounds the upper part of the belt 36 to ensure the safety of the operator.

The belt cover 70 is fixed to the elevator case 17 side by the knob bolt 71 (FIG. 19).

Therefore, the belt cover 70 can be attached and detached without tools, and the belt 36 can be easily replaced.

Although not shown, the belt cover 70 may be provided with a handle having an engaging groove, and the engaging groove of the handle may be used as a fixing means for engaging with the engaging shaft provided on the side plate of the elevator case 17.

An intermediate output shaft 57 is integrally attached to a tip-side rotating shaft 20 projecting to the left side of the elevator case 17, an intermediate gear 55 that rotationally outputs to the auger 13, and a wobble mechanism 56 that rotationally outputs the cutting blade 12. It is detachably attached by the key 58 and the set bolt 59 (FIGS. 20 and 21).

Therefore, it is possible to easily assemble and attach / detach the transmission member such as a gear to the cutting blade 12 and the auger 13, thereby facilitating the attachment / detachment of the table 14.

Although not shown, is a wobble mechanism that divides the intermediate output shaft 57 into left and right, attaches an intermediate gear 55 that rotationally outputs to the auger 13 to the inner intermediate output shaft 57A, and rotationally outputs to the cutting blade 12 to the outer intermediate output shaft 57B. 56 may be attached by a set bolt set bolt 59, respectively.

Therefore, it is possible to easily assemble and attach / detach the transmission member such as a gear to the cutting blade 12 and the auger 13, and in particular, the wobble chain (not shown) hung between the cutting blade 12 and the wobble mechanism 56 can be replaced. make it easier.

(Action of Embodiment)
In the present invention, the machine body is driven by the traveling device 2, the culms in the field are scraped by the rotating scraping reel 11 of the cutting device 4, and the scraped culms are cut and cut by the cutting blade 12. The grain culm is supplied to the threshing device 3 by the transport elevator 15 and transported to thresh.

The rotation input shaft 16 at the base of the transfer elevator 15 is mounted on the machine body side, and the transfer elevator 15 and the cutting device 4 are configured to rotate up and down with the rotation input shaft 16 as a rotation fulcrum, and the rotation input shaft in the elevator case 17 is provided. The base side rotating roller 19 is attached to the 16 in a fixed state, the tip side rotating roller 21 is rotatably attached to the tip side rotating shaft 20 in the elevator case 17, and the intermediate portion is attached to the intermediate portion in the front-rear direction of the elevator case 17. An endless transport chain 25 having a drive gear 23 provided by a drive rotary shaft 22 and a plurality of transport bodies (slats) 24 provided at a predetermined interval between the drive gear 23, the base side rotary roller 19, and the tip side rotary roller 21. Since it is hung around, the side surface shape of the elevator case 17 projects the portion of the intermediate portion drive rotary shaft 22 (drive gear 23) diagonally forward from the line L connecting the base side rotary roller 19 and the tip side rotary roller 21. The shape is "convex", and the tip side rotating shaft 20 (tip side rotating roller 21), the intermediate part drive rotating shaft 22 (driving gear 23), and the rotating input shaft 16 (base side rotating roller 19) convey the triangle. The chain 25 line can be formed, and therefore, the intermediate portion of the transfer chain 25 is supported by the drive gear 23 as compared with the case where the transfer chain 25 is rotated around the conventional tip side roller and the base side drive gear. Therefore, the fluttering of the upper return moving transport chain 25A and the transport body 24 can be reduced.

The rotation input shaft 16 projecting to the right side of the elevator case 17 is provided with an inner pulley 28 provided in a double shape and an outer pulley 29 provided outside the inner pulley 28, and the inner pulley 28 and the outer pulley 29 are the rotation input shafts. An input belt 30 for inputting the rotation of the engine is hung around the inner pulley 28 in a fixed state, and the belt 36 is placed between the outer pulley 29 of the rotation input shaft 16 and the driven pulley 35 of the intermediate drive rotation shaft 22. The engine rotation is input to the rotation input shaft 16, and the rotation of the rotation input shaft 16 is transmitted as the outer pulley 29 → belt 36 → driven pulley 35 → intermediate drive rotation shaft 22 → drive gear 23. The drive gear 23 drives and rotates the transport chain 25, and supplies and transports the grain shavings cut by the transport body 26 provided in the endless transport chain 25 to the grain removal chamber (not shown) of the grain removal device 3.

The rotary input shaft 16 projecting to the right side of the elevator case 17 is provided with an inner pulley 28 provided in a double shape and an outer pulley 29 provided outside the inner pulley 28, and the outer pulley 29 is provided on the right side of the inner pulley 28. Since it is provided in the above, the belt 36 that transmits the rotation to the drive gear 23 can be easily replaced.

That is, conventionally, since the inner pulley 28 of the rotary input shaft 16 corresponds to the driven pulley 35 and the input belt 30 corresponds to the input belt 36, it is necessary to replace the input belt 30 and remove the input belt 30. Discharges the grains in the Glen tank 5, then opens the outside of the Glen tank, and then removes the grain removal belt (not shown) leading to the intermediate output shaft 32, and finally the input belt 30 is replaced. In the present invention, only the belt 36 on the side of the elevator case 17 is replaced, so that the belt can be easily replaced when the transport is clogged.

Further, since the rotary input shaft 16 has the drive sprocket of the transport chain 25, a large amount of grain culms are wound around, but in the present invention, the base side rotating roller 19 is used to prevent the grain culms from wrapping around.

Further, conventionally, since the tension of the transport chain 25 is adjusted by moving the tip side rotating roller 21 back and forth, the distance between the base side rotating roller 19 and the tip side rotating roller 21 fluctuates, so that the grains in the elevator case 17 are used. Although the elevator transfer is not stable, in the present invention, since the tension of the transfer chain 25 can be adjusted by moving the drive gear 23, the distance between the base side rotary roller 19 and the tip side rotary roller 21 does not change, and the grain transfer is performed. Can be stabilized.

The left end of the tip side rotating shaft 20 of the tip side rotating roller 21 is projected from the elevator case 17 to the left side surface, and the protruding portion is provided with an output pulley cutting blade / auger transmission portion 37 for driving the cutting blade 12 and the auger 13. Therefore, conventionally, the transmission chain for driving the cutting blade 12 and the auger 13 provided on the left side of the elevator case 17 can be abolished and replaced with the transfer chain 25, so that the number of parts can be reduced and the cost can be reduced. be able to.

In the side view, the convex shape of the transport elevator 15 is such that the distance between the rotary input shaft 16 (base side rotary roller 19) and the intermediate drive rotary shaft 22 (drive gear 23) A> intermediate drive rotary shaft 22 (drive). Since the distance B between the gear 23) and the tip side rotating shaft 20 (tip side rotating roller 21) is set, a grain transport passage can be secured below the upper return moving transport chain 25A, and the drive gear 23 can be moved up and down. The tension mechanism T of the transport chain 25 can be easily configured by making it movable.

In the side view, the convex shape of the transport elevator 15 is such that the distance A between the rotary input shaft 16 (base side rotary roller 19) and the intermediate drive rotary shaft 22 (drive gear 23) <intermediate drive rotary shaft 22 (drive). Since the distance B between the gear 23) and the tip side rotating shaft 20 (tip side rotating roller 21) is set, a grain transport passage can be secured below the upper return moving transport chain 25A, and the drive gear 23 can be moved up and down. The tension mechanism T of the transport chain 25 can be easily configured by making it movable.

Since the drive sprocket drive gear 23 is movable, the tension mechanism T of the transport chain 25 is used, and the tension mechanism T is configured to pull the drive gear 23 upward, the configuration can be simplified, the cost can be reduced, and the cost can be reduced. Not only is it easier to assemble, but it is also easier to adjust.

Adjustment stays 40 are provided on both sides of the intermediate drive rotary shaft 22 of the drive gear 23, the screw shaft 41 is fixed to the upper part of the adjustment stay 40, and the upper part of the screw shaft 41 is attached to the support plate 42 provided in the elevator case 17. Since the adjusting bolt 43 is screwed into the screw shaft 41 that is mounted and protrudes upward from the support plate 42, the tension can be adjusted by rotating the adjusting bolt 43 and moving the intermediate drive rotating shaft 22 up and down. ..

Therefore, the tension mechanism T of the transport chain 25 can be configured by the left and right adjusting stays 40 and the screw shaft 41, and the configuration can be simplified and the cost can be reduced. Further, since the tension mechanism T positions all of the adjusting stay 40, the screw shaft 41, and the support plate 42 on the outside of the elevator case 17, assembly can be facilitated and adjustment can be easily performed.

Since the base-side rotating roller 19 is configured to integrally form a cylindrical drum and rotate together with the carrier 24, the rotation input shaft 16 is not a drive gear but a base having a diameter larger than that of the rotation input shaft 16. Since the side rotating roller 19 is provided, it is difficult for the transport grain to be entangled with the base rotating roller 19, and since the base rotating roller 19 does not have a driving gear, the grain rotating together with the base rotating roller 19. Since the number of gears is small, the winding of the gear around the rotary input shaft 16 is prevented.

Further, in the present invention, since the drive gear 23 is provided in the transport chain 25A through which the transport culm does not pass, the transport culm does not get entangled with the drive gear 23.

1 ... Aircraft frame, 2 ... Traveling device, 3 ... Grain removal device, 4 ... Cutting device, 5 ... Glen tank, 6 ... Control unit, 10 ... Weeding device, 11 ... Scraping reel, 12 ... Cutting blade, 13 ... Auger, 14 ... Table, 15 ... Transport elevator, 16 ... Rotating input shaft, 17 ... Elevator case, 18 ... Side plate, 19 ... Base side rotating roller, 20 ... Tip side rotating shaft, 21 ... Tip side rotating roller, 22 ... Intermediate drive rotary shaft, 23 ... Drive gear, 24 ... Conveyor, 25 ... Convey chain, 28 ... Inner pulley, 29 ... Outer pulley, 30 ... Input belt, 31 ... Intermediate output pulley, 32 ... Intermediate output shaft, 35 ... Driven pulley, 36 ... belt, 37 ... cutting blade / auger transmission part, 40 ... adjustment stay, 41 ... screw shaft, 42 ... support plate, 43 ... adjustment bolt, 44 ... lock nut, 45 ... fixing bolt, 46 ... rearward tilt Part, 47 ... forward inclined part, 48 ... flat part, 55 ... intermediate gear, 56 ... wobble mechanism, 57 ... intermediate output shaft, 58 ... key, 59 ... set bolt, 60 ... tension roller, 61 ... tension arm, 62 ... Tension rod, 63 ... Mounting part, 64 ... Tension spring, 70 ... Belt cover, 71 ... Knob bolt, 72 ... Handle.

Claims (6)

A transport elevator 15 that supplies and transports grain shavings cut by a cutting device 4 provided in front of the traveling device 2 to a grain removing device 3 provided above the traveling device 2 by a transport body 26 provided in an endless transport chain 25. In the combine provided with the above, in the transfer elevator 15, the base side rotary roller 19 is rotatably attached to the rotary input shaft 16 at the base of the transfer elevator 15, and the tip side rotary roller 21 is rotatably attached to the tip side of the transfer elevator 15. A drive gear 23 for driving the transport chain 25 is supported by an intermediate drive rotary shaft 22 in the middle portion of the elevator case 17 in the front-rear direction, and the drive gear 23, the base side rotary roller 19, and the tip side rotary roller are provided. The transport chain 25 is hung around the 21 and the drive gear 23 connects the center of the rotary input shaft 16 to which the base side rotary roller 19 is attached and the rotary shaft 20 of the tip side rotary roller 21 in a side view. A combine placed above the virtual line. In the combine according to claim 1, the inner pulley 28 and the outer pulley 29 provided on the outside of the inner pulley 28 can rotate independently of the rotation input shaft 16 on the rotation input shaft 16 projecting to the right side of the transport elevator 15. The input belt 30 for inputting the rotation of the engine is hung around the inner pulley 28, and the belt 36 is hung between the outer pulley 29 and the driven pulley 35 of the intermediate drive rotation shaft 22 to which the drive gear 23 is attached. The combined combine that was turned. In the combine according to claim 1 or 2, the distance A between the base side rotary roller 19 and the drive gear 23 is set to be larger than the distance B between the drive gear 23 and the tip side rotary roller 21. combine. In the combine according to claim 1 or 2, or 3, the drive gear 23 is movable in the vertical direction to form a tension mechanism T of the transport chain 25, and the tension mechanism T pulls the drive gear 23 upward. Combine harvester. In the combine according to any one of claims 1 to 4, the base-side rotating roller 19 is formed by dividing a cylindrical member constituting a cylindrical drum into two parts in a radial direction with respect to the axial direction of the cylindrical drum. combine. In the combine according to any one of claims 1 to 5, the left end of the tip side rotating shaft 20 to which the tip side rotating roller 21 is attached is projected to the left side from the elevator case 17 of the transport elevator 15, and is left side of the elevator case 17. An intermediate output shaft 57 to which an intermediate gear 55 that rotationally outputs to the auger 13 and a wobble mechanism 56 that rotationally outputs the cutting blade 12 is attached to the tip-side rotating shaft 20 that protrudes into the auger 13 is detachably attached.

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