JP2017175920A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine-harvester enabled to enhance the rigidity and to perform the maintenance of a transmission input part and a mowing input part by shortening a harvesting input shaft.SOLUTION: A mowing input shaft (22) of a longitudinal direction arranged at the back of a conveyance elevator (14) is equipped with: a first input part (23) and a second input part (25) for inputting the rotation power of an engine (21) to that moving input shaft (22); and a mowing transmission part (90) for outputting the rotation power inputted from those first input part (23) and second input part (25) toward a mowing device (4). The mowing input shaft (22) is equipped with the first input part (23) at the end part of one transverse part, and with the second input part (25) at the other part of the mowing input shaft (22). The mowing transmission part (90) is arranged either between the first input part (23) and the transfer elevator (14) or between the second input part (25) and the transfer elevator (14), and at a portion to become the transverse width inner side of a thresher (3).SELECTED DRAWING: Figure 3

Description

  The present invention relates to a combine.

  As disclosed in Patent Document 1, a technique is known in which a cutting input shaft provided at a rear portion of a transport elevator is provided with two transmission input units and a cutting transmission unit that transmits power from the cutting input shaft to the cutting device.

JP 2010-239980 A

  In the technique disclosed in Patent Document 1 described above, since the transmission input unit and the cutting transmission unit are provided on the cutting input shaft, the cutting input shaft becomes longer, the rigidity is reduced, and the transmission efficiency of the rotational power to the cutting device is reduced. There is a problem that decreases.

  It is an object of the present invention to shorten the cutting input shaft to increase rigidity and to easily perform maintenance of the transmission input unit and the cutting transmission unit.

  The invention according to claim 1 is a combine equipped with a transport elevator (14) for transporting the cereals harvested by the reaping device (4) to the threshing device (3) arranged behind the reaping device (4). A first input unit (23) for inputting rotational power of the engine (21) to the cutting input shaft (22) to a cutting input shaft (22) in the left-right direction arranged at the rear of the transport elevator (14); A reaping transmission section (90) for outputting the second input section (25) and the rotational power input from the first input section (23) and the second input section (25) toward the reaping device (4). The first input part (23) is provided at one end of the left and right sides of the cutting input shaft (22), and the second input part (25) is provided at the left and right ends of the cutting input shaft (22). The cutting transmission unit (90) in the front view of the aircraft, the first input Between the section (23) and the transport elevator (14) or between the second input section (25) and the transport elevator (14), and on the inside of the left and right width of the threshing device (3) It is a combine characterized by the arrangement.

  The invention according to claim 2 is the combine according to claim 1, wherein the harvesting transmission part (90) is arranged so as to be biased outward of the fuselage with respect to the transport elevator (14). is there.

  The invention according to claim 3 is the combine according to claim 2, wherein the second input part (25) is arranged to be biased outward of the fuselage with respect to the transport elevator (14). It is.

  According to a fourth aspect of the present invention, the rotational power of the engine (21) is input to the second input portion (25) in a direction opposite to that of the first input portion (23). It is set as the combine as described in any one of Claims 1-3.

  According to the invention described in claim 1, the cutting transmission unit (90) is between the first input unit (23) and the transport elevator (14) or the second input unit (25) in the front view of the machine body. Since it is arrange | positioned in the site | parts which are between the said transport elevators (14) and become the left-right width | variety of a threshing apparatus (3), shortening the length of a cutting input shaft (22) and improving rigidity can be carried out. it can.

  According to the second aspect of the present invention, since the mowing transmission part (90) is arranged on the outer side of the machine body with respect to the transport elevator (14), the mowing transmission part (90) is easily maintained. be able to.

  According to the invention described in claim 3, since the second input part (25) is arranged on the outer side of the machine body with respect to the transport elevator (14), the maintenance of the second input part (25) is easy. Can be done.

  According to the fourth aspect of the present invention, the rotational power of the engine (21) is input to the second input section (25) in the direction opposite to that of the first input section (23). The input shaft (22) can be driven forward and backward.

The side view of a combine. The side view of the reverse rotation mechanism vicinity. The front view of a threshing apparatus. Schematic diagram of transmission path. The top view of a side panel. Operation | movement explanatory drawing of an operation mechanism. The side view of the transmission mechanism of a threshing apparatus. 4 is an enlarged view of the main part of FIG.

  An embodiment of the present invention will be described with reference to the drawings.

  In FIG. 1, reference numeral 1 denotes an airframe frame, 2 a traveling device provided at a lower position of the airframe frame 1, 3 a threshing device provided at an upper position of the airframe frame 1, and 4 an airframe frame 1. A reaping device 5 provided in front of the threshing device 3 is provided at a side portion of the threshing device 3, a Glen tank for temporarily storing grains threshed by the threshing device 3, and a control unit 6.

  As shown in FIG. 1, the reaping device 4 includes a left and right side plates 7, a bottom plate 9 positioned below the auger 8, and a rear plate 10 provided so as to connect the left and right side plates 7 and the bottom plate 9. The reel 11, the cutting blade 13, and the auger 8 are provided on the table 11. The front end of the transfer elevator 14 is attached to the table 11, and the base of the transfer elevator 14 is connected to the threshing chamber of the threshing device 3.

  With this configuration, the cereals whose stock has been cut by the cutting blade 13 while being scraped backward by the reel 12 are taken into the table 11 by the auger 8 and conveyed by a spiral take-up member provided on the outer periphery of the auger 8. Collected in front of the elevator 14. Then, the transport elevator 14 transports the collected cereals toward the threshing chamber of the threshing device 3.

  Since the rotation of the engine 21 is transmitted to the reaping device 4 via the transfer elevator 14, the drive shaft at the base of the transfer elevator 14 is also used as the reaping input shaft (output shaft) 22 to the reaping device 4. A cutting input pulley 23 is provided on one end side of the input shaft 22 to transmit the normal rotation of the engine 21.

  Thus, on one end side (right end side) of the cutting input shaft 22, a cutting input pulley 23 as a normal rotation input unit (first input unit) that inputs the rotation of the engine 21 to the cutting input shaft 22 in a normal rotation. It has. Here, the normal rotation refers to a driving rotation direction in which the auger 8 scrapes the cereal into the transport elevator 14 and the transport elevator 14 transports the cereal toward the threshing device.

  As shown in FIG. 2, a reverse rotation mechanism 20 that reverses the driving rotation direction of the reaping device 4 is provided at a predetermined position of the machine body.

  In other words, when clogging occurs in the auger 8, the transport elevator 14, etc., the reverse rotation mechanism 20 is provided to facilitate maintenance by driving the reaping device 4 and the transport elevator 14 in reverse to discharge the clog.

  As shown in FIGS. 2 and 3, the reverse rotation mechanism 20 is provided on each of a cutting input shaft 22 provided on the transport elevator 14 and a reverse input shaft (input shaft) 24 parallel to the cutting input shaft 22. A pair of lower spur gear (second spur gear) 25 and upper spur gear (first spur gear) 26 are engaged with each other. Thereby, the left-right width of the reverse rotation mechanism 20 can be reduced. The reaping input shaft 22 and the reverse rotation input shaft 24 are provided in a reaping support portion 27 that supports the transport elevator 14 so as to be movable up and down. The cutting support part 27 is provided on the front wall 3F of the threshing device 3.

  That is, the reverse rotation mechanism 20 is provided with a lower spur gear 25 on the left end side (outer end portion) of the cutting input shaft 22, and the reverse rotation input shaft 24 of the reverse rotation mechanism 20 provided on the cutting support portion 27 above the cutting input shaft 22. An upper spur gear 26 is provided on the cutting input shaft 22, and the lower spur gear 25 of the cutting input shaft 22 and the upper spur gear 26 of the reverse rotation input shaft 24 are engaged with each other. The effective diameter of the upper lower gear 26 is set smaller than the effective diameter of the lower spur gear 25.

  As a result, the reverse rotation mechanism 20 inputs the drive rotation of the engine 21 through the reverse rotation input shaft 24, and reverses the input drive rotation by the lower spur gear 25 and the upper spur gear 26 to rotate the reverse input shaft 24. It outputs to the cutting input shaft 22 at a speed lower than the speed, and reverses the transport elevator 14 and the cutting apparatus 4.

  Thus, on the other end side (left end side) of the cutting input shaft 22, the lower spur gear 25 as a reverse input portion (second input portion) that inputs the rotation of the engine 21 to the cutting input shaft 22 by reverse rotation. It has. Here, the reverse rotation is rotation in the direction opposite to the above-described normal rotation, and the transport elevator 14 sends the cereal toward the front where the auger 8 is located, and the auger 8 spouts the cereal toward the front. Such a driving rotation direction.

  The reverse rotation mechanism 20 is provided in the harvesting support portion 27 located on the left side of the feeder house 30 of the transport elevator 14, and the reverse rotation input shaft 24 is provided in the harvesting support portion 27 on the upper side of the harvesting input shaft 22.

  As a result, the reverse rotation input shaft 24 is positioned at a position above the cutting input shaft 22 with less interference from uncut cereals and the like during normal reaping operations. The mechanism 20 can be operated smoothly.

  The power of the engine 21 is input to the intermediate shaft (counter shaft) 32 and is transmitted from the intermediate shaft 32 to the reverse input shaft 24 via the belt 31. The intermediate shaft 32 is connected to the tangle 33 in the threshing device 3. Provide through the front part. The belt 31 is wound around a pulley 35 provided on the left end of the intermediate shaft 32 and a reverse input pulley (pulley) 36 provided on the reverse input shaft 24, and the clutch pulley 37 is brought into contact with the belt 31. Thus, a tension type reverse rotation clutch (a clutch of the reverse rotation mechanism 20) is configured. The rotation is transmitted to the reverse rotation mechanism 20 by the connection of the reverse rotation clutch.

  As a result, the transmission distance of the belt 31 between the intermediate shaft 32 and the reverse input shaft 24 can be shortened to increase the transmission efficiency.

  The reverse rotation mechanism 20 that drives from the intermediate shaft 32 provided on the front side of the threshing device 3 to the reaping device 4 is disposed on the reaping support portion 27 on the left side of the transport elevator 14.

  In FIGS. 2 and 4, 34 is a pulley 33 of the red pepper 33, 38 is a belt, and 39 is a tension pulley.

  As shown in FIG. 3, the transport elevator 14 supports a cutting input shaft 22 that protrudes from the left and right sides of the feeder house 30 on a cutting support portion 27 so as to be movable up and down. A bearing 40 is provided in a portion of the cutting support portion 27 above the cutting input shaft 22, and the reverse input shaft 24 is mounted on the bearing 40.

  A reverse rotation input pulley 36 is provided at the outer end (left end) of the reverse rotation input shaft 24, and the upper spur gear 26 is provided at a portion inside the reverse rotation input pulley 36 in the reverse rotation input shaft 24.

  That is, since the upper spur gear 26 having an outer diameter smaller than the outer diameter of the reverse rotation input pulley 36 is provided inside the reverse rotation input pulley 36, the upper spur gear 26 and the lower spur gear provided on the cutting input shaft 22 are provided. The meshing portion with the gear 25 is covered by the reverse rotation input pulley 36, so that the reverse rotation mechanism 20 can be operated more stably.

  Further, the cutting input shaft 22 includes a cutting transmission unit that transmits the rotation of the cutting input shaft 22 to the cutting device 4. Specifically, the cutting transmission unit is a cutting drive gear 90 around which a chain is wound.

  The cutting drive gear 90 is disposed at a position between the lower spur gear 25 in the axial direction of the cutting input shaft 22 and the left cutting support portion 27. More specifically, the cutting drive gear 90 is disposed closer to the left cutting support portion 27 in the axial direction of the cutting input shaft 22. Moreover, the cutting drive gear 90 is arrange | positioned in the width | variety of the threshing apparatus 3 in the left-right direction. In other words, the cutting drive gear 90 is disposed between the left wall 3L corresponding to the left end of the front end portion of the threshing device 3 and the right wall 3R corresponding to the right end of the front end portion of the threshing device in the left-right direction. Has been.

  By arranging the cutting drive gear 90 within the width of the threshing device 3, the cutting input shaft 22 can be shortened, and the rigidity of the cutting input shaft 22 with respect to the driving load of the cutting device 4 and the transport elevator 14 is increased. In addition, while the cutting drive gear 90 is accommodated within the width of the threshing device 3 in this way, at least the rear end portions of the reverse input pulley 36, the lower spur gear 25, and the cutting input pulley 23 are connected to the front wall 3F of the threshing device 3. By positioning it further to the rear side, the distance between the cutting input shaft 22 and the front wall 3F in the front-rear direction can be reduced, and the front-rear length of the airframe can be made compact.

  A cutting drive chain 93 is wound around the cutting drive gear 90, the cutting blade drive gear 91, and the first intermediate gear 92.

  The cutting blade drive gear 91 is provided on a conversion input shaft 94 that inputs to the conversion mechanism 95. The conversion mechanism 95 outputs the rotation in one direction transmitted to the conversion input shaft 94 to the conversion output shaft 96 as a reciprocating rotational motion. The first intermediate gear 92 is provided on the intermediate shaft 97. The intermediate shaft 97 is provided with a second intermediate gear 98.

  An auger drive chain 100 is wound around the second intermediate gear 98 and the auger drive gear 99 provided on the auger rotation shaft 101 of the auger 8. Then, the power is transmitted from the reel transmission gear 102 provided on the auger rotating shaft 101 to the reel 12 via a transmission member such as a chain. A plurality of pulleys are provided on the rotation shaft of the reel 12, and the rotation of the reel 12 can be changed by changing the belt.

  2 and 3, reference numeral 41 denotes a belt stopper provided above the reverse rotation input pulley 36, and 42 denotes a belt stopper provided below the pulley 35.

  The clutch pulley 37 is attached to a tension arm 43, and the base of the tension arm 43 is attached to a cylinder 44 that is rotatably provided on the intermediate shaft 32. The tension arm 43 is configured to be rotatable about the intermediate shaft 32.

  That is, in order to apply tension to the belt 31, the tension arm 43 is rotatably supported on the outer periphery of the cylinder 44 that rotatably supports the intermediate shaft 32.

  By supporting the tension arm 43 on the intermediate shaft 32, the support structure of the clutch pulley 37 can be simplified.

  In addition, the attachment structure of the intermediate shaft 32, the cylinder 44, and the tension arm 43 is arbitrary, and the tension arm 43 may be configured to rotate around the intermediate shaft 32.

  An arm 45 of a tension arm 43 is fixed to the cylinder 44, and one end of an operation transmission member (wire) 48 is locked to the arm 45.

  As shown in FIGS. 2 and 3, the operation transmission member 48 locked to the arm 45 is positioned below the transport elevator 14 and passes through the valve unit cover 49 that covers the valve unit 50, and the side panel 53 of the control unit 6. Is engaged with the reverse operation lever 47.

  Therefore, it is possible to simplify and reduce the weight of the operating parts. In addition, the operation transmission force of the operation transmission member 48 can be improved, the reverse transmission clutch 37 can be actuated quickly, and the routing of the operation transmission member 48 can be stabilized and strengthened.

  As shown in FIGS. 5 and 6, the reverse operation lever 47 is provided outside the throttle lever 54 of the side panel 53 of the control unit 6.

  Therefore, an operation mechanism 55 that links (links) the reverse rotation operation lever 47 and the throttle lever 54 can be installed.

  That is, the operation mechanism 55 rotatably mounts a reverse operation lever 47 on an attachment shaft (also referred to as a support shaft) 56, and a cam mechanism 57 is provided on the attachment shaft 56, and the cam mechanism 57 operates the reverse operation lever 47. Then, the throttle lever 54 is rotated to reduce the rotation of the engine.

  Thereby, since the reverse rotation drive of the cutting device 4 and the conveyance elevator 14 by the reverse rotation mechanism 20 can be performed at low speed, the maintenance performed by reversing the cutting device 4 and the conveyance elevator 14 can be easily performed.

  That is, the cam mechanism 57 is provided on the mounting shaft 56 of the reverse operation lever 47, the cam mechanism 57 faces the movement locus of the base of the throttle lever 54, and the reverse operation lever 47 is turned off (the clutch of the reverse operation mechanism 20 is disconnected). When the reverse operation lever 47 is operated, the cam mechanism 57 rotates the throttle lever 54 to the low speed side to reduce the rotation of the engine.

  The reverse operation lever 47 is provided so as to protrude above a notch 61 provided in a cover 60 provided on the side of the side panel 53.

  Accordingly, the reverse operation lever 47 can be arranged without increasing the distance from the operation transmission shaft 46, and the operation transmission member 48 can be easily routed between the operation transmission shaft 46 and the reverse operation lever 47.

  An interference mechanism 63 is provided between the reverse operation lever 47 and the cutting clutch lever 62 provided on the side panel 53.

  The interference mechanism 63 fixes the base portion of the arm 64 to the attachment shaft 56 of the reverse operation lever 47, and the pin 65 at the tip of the arm 64 faces the movement locus of the plate 66 at the base portion of the cutting clutch lever 62.

  When the reaping clutch 67 is turned “on” by the operation of the reaping clutch lever 62 (when connected), when the reversing operation is performed by the reversing operation lever 47, the arm 64 is rotated and the pin of the arm 64 is rotated. 65 abuts on the plate 66 to “cut” (cut off) the cutting clutch 67 (FIG. 4).

  4 is a transmission mechanism diagram of the combine according to the present invention, wherein 68 is a handle input shaft of the handle 69, 70 is an output pulley, and 71 is a belt wound around the output pulley 70 and the cutting input pulley 23. .

  Further, as shown in FIG. 7, a second counter shaft 73 is provided at the front and rear intermediate position of the machine body of the threshing device 3, and a belt 75 is attached to the pulley of the intermediate shaft (first counter shaft) 32 and the pulley of the second counter shaft 73. The rotation of the intermediate shaft (first counter shaft) 32 is transmitted to the second counter shaft 73, and the belt 80 is wound around the pulleys of the first spiral 78 and the second spiral 79 from the second counter shaft 73. The belt 83 is wound around the pulley of the swing shelf 82 from the swing counter pulley 81 that is wound around 80 to drive the threshing device 3.

  84 is a cutter device, and 85 is a belt.

  In the above-described embodiment, the reverse rotation mechanism 20 is provided on the left end side (outer end portion) of the cutting input shaft 22, but the reverse rotation mechanism 20 is provided on the right end side (inner end portion) of the cutting input shaft 22. You can also.

  That is, by providing the reverse rotation mechanism 20 on the right cutting support portion 27, a reverse rotation input portion is configured at the right end portion of the cutting input shaft 22, and the rotation transmitted to the intermediate shaft 32 is cut without passing through the reverse rotation mechanism 20. By transmitting to the input shaft 22, a forward rotation input portion can be configured at the left end portion of the cutting input shaft 22.

  At this time, the cutting transmission unit can be arranged on either the forward rotation input unit side or the reverse rotation input unit side. However, when the reaping device 4 or the transport elevator 14 is clogged and the reaping input shaft 22 is driven to rotate in the reverse direction, the driving load causes the area around the reaching transmission portion, that is, the reaping driving gear 90 or the reaping driving gear in the reaping input shaft 22 In order to prevent the portion to which 90 is attached from being damaged, it is desirable to provide the cutting transmission portion on the reverse input portion side. Moreover, also when comprised in any way, it is preferable to arrange | position a cutting transmission part in the width | variety of the threshing apparatus 3 in the left-right direction.

(Operation of the embodiment)
The machine is run, and the cereals in the field harvested by the reaping device 4 are supplied to the threshing room of the threshing device 3 for threshing.

  Since the rotation of the engine 21 is transmitted to the reaping device 4 via the transfer elevator 14, the reaping operation is performed by transmitting the normal rotation of the engine 21 to the chopping input pulley 23 of the chopping input shaft 22 of the transfer elevator 14. .

  Since the reversing mechanism 20 for reversing the drive of the reaping device 4 is provided at a predetermined position of the machine body, when the clogging occurs in the auger 8 or the transport elevator 14, the reaping device 4 and the transport elevator 14 are reversed. The clogging can be discharged and removed, which makes maintenance easier.

  The reverse rotation mechanism 20 is configured by meshing a pair of a lower spur gear 25 and an upper spur gear 26 provided on a cutting input shaft 22 provided on the transport elevator 14 and a reverse input shaft 24 parallel to the cutting input shaft 22. The cutting input shaft 22 and the reverse input shaft 24 are provided on a cutting support portion 27 that supports the transport elevator 14 so as to be movable up and down. As a result, the reverse rotation mechanism 20 inputs the driving rotation of the engine 21 to the reverse rotation mechanism 20 via the reverse rotation input shaft 24, and the reverse rotation mechanism 20 reverses the rotation input by the pair of upper and lower side spur gears 25 and 26 and outputs it. The transport elevator 14 and the reaping device 4 are reversed.

  Since the intermediate shaft 32 that transmits the power of the engine 21 by the belt 31 is provided in the reverse input shaft 24 through the front portion of the tang 33 of the threshing device 3, the pulley 35 provided on the intermediate shaft 32 and the reverse input shaft The belt 31 can be wound around the reverse rotation input pulley 36 provided at 24.

  As a result, the distance between the intermediate shaft 32 and the reverse input shaft 24 can be shortened, and the transmission efficiency of the belt 31 is not lowered.

  In addition, the clutch pulley 37 formed by a tension pulley is brought into contact with the belt 31 to transmit the rotation from the intermediate shaft 32 to the reverse rotation input shaft 24 of the reverse rotation mechanism 20. It can be shut off by the clutch pulley 37.

  Further, as shown in FIG. 3, the reverse rotation mechanism 20 is arranged and configured on the harvesting support portion 27 on the left side of the transport elevator 14, and a pair of spur gears (lower side) Combined with the point where the spur gear 25 and the upper spur gear 26 are engaged, the left and right width of the reverse rotation mechanism 20 can be reduced to fit within the width of the transmission mechanism to the carp 33, and the left side of the feeder house 30 Space can be used effectively.

  Also, since the belt stopper 41 is provided above the reverse rotation input pulley 36 and the belt stopper 42 is provided below the pulley 35, even if the clutch pulley 37 is “cut” and the belt 31 is slack, the belt 31 is disengaged. Can be prevented.

  The clutch pulley 37 is attached to a tension arm 43, the base of the tension arm 43 is attached to a cylinder 44 that is rotatably provided on the intermediate shaft 32, and the tension arm 43 is configured to be rotatable about the intermediate shaft 32. The pulley 37 is brought into contact with and separated from the belt 31 by the tension arm 43 being rotated about the intermediate shaft 32 by the cylinder 44.

  That is, the support structure of the clutch pulley 37 can be simplified by supporting the tension arm 43 on the intermediate shaft 32.

  When the reverse operation lever 47 is operated in reverse, the operation transmission member 48 rotates the tension arm 43 so that the clutch pulley 37 is engaged (connected), and the reverse rotation mechanism 20 operates.

DESCRIPTION OF SYMBOLS 3 Threshing apparatus 4 Reaping apparatus 14 Conveyor elevator 21 Engine 22 Reaping input shaft 23 Reaping input pulley (1st input part)
25 Lower spur gear (second input part)
90 Mowing drive gear (mowing transmission)

Claims (4)

In the combine provided with the transport elevator (14) for transporting the cereals harvested by the reaping device (4) to the threshing device (3) arranged behind the reaping device (4),
In the left and right cutting input shaft (22) arranged at the rear of the transport elevator (14),
A first input unit (23) and a second input unit (25) for inputting rotational power of the engine (21) to the cutting input shaft (22);
A cutting power transmission section (90) that outputs the rotational power input from the first input section (23) and the second input section (25) toward the harvesting device (4),
The first input part (23) is provided at the left and right ends of the cutting input shaft (22),
The second input portion (25) is provided at the left and right end portions of the cutting input shaft (22),
The mowing transmission part (90) is located between the first input part (23) and the transport elevator (14) or between the second input part (25) and the transport elevator (14) in front of the machine body. The combine is characterized in that it is arranged at a site inside the left-right width of the threshing device (3). The combine according to claim 1, wherein the harvesting transmission part (90) is arranged to be deviated outward of the fuselage with respect to the transport elevator (14). The combine according to claim 2, wherein the second input section (25) is arranged so as to be biased outward of the fuselage with respect to the transport elevator (14). The second input unit (25) is configured such that rotational power of the engine (21) is input in a direction opposite to that of the first input unit (23). Combine according to one item.

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