JP2009232708A - Reaping apparatus for combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reaping apparatus for a combine harvester, enabling its own cost reduction, low vibrations, low noise and maintenance facilitation owing to simplifying the transmission system of raisers. <P>SOLUTION: The reaping apparatus for a combine harvester has the following scheme: the raisers 18 are arranged transversely; a top traverse frame 13 supporting the respective upper ends of the raisers 18; a reaping frame 7 rectangular when viewed from the front, with the traverse frame 13 as the upper side, is constituted; a conveyor 25 is supported on the reaping frame 7; a center frame 6 is extended rearward from a midway part of the lower side of the reaping frame 7, and the rear end of the center frame 6 is axially supported in a vertically movable way on the reaping turning shaft 8 on the machine frame side; and an upper-part junction member 9 joining the reaping turning shaft 8 and the top traverse frame 13 each other is provided therebetween. The upper-part junction member 9 and the inside of the top traverse frame 13 are installed with transmission shafts 9d and 13d functioning to drive the raisers 18 on receiving mechanical power from the reaping turning shaft 8. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a combine harvesting device that includes a pulling device and is supported by a front portion of the machine body so as to be movable up and down.

As described in Patent Document 1, the cutting device disposed at the front end of the machine body includes a herbage for sorting the grains into sections, a pulling device for causing the sorted grains, and a blade for causing the induced grains It is configured so that multiple cuttings can be performed in parallel by supporting a cutting device such as a scraping device that guides to and a conveying device for post-feeding the harvested cereal rice cake on a rectangular cutting frame, and the lower side of the cutting frame The center frame extends backward from the middle position of the lower transverse frame, and the rear end part is pivotally supported by the cutting rotation support shaft provided at the front end of the machine body frame so that the entire reaping device can be raised and lowered. Supported. In addition, each device constituting the reaping device is driven from a center frame transmission shaft, which is configured inside the center frame and receives power from the cutting rotation support shaft, via a transmission shaft configured inside each frame.
Japanese Patent Laid-Open No. 5-41921

  However, with regard to the pulling device supported by the cutting frame, in order to cause the planting strain, the surrounding lugs that stand on both sides of the planting strain are arranged side by side and the number of cutting strips in front of the cutting device according to the cutting strip. Since each upper end is supported by an upper transverse frame constituting the upper side of the cutting frame, in order to drive each driving pulley, from the lower transverse frame connected to the center frame and from its side end Since a complicated transmission system is required from the side frame that rises to the upper transverse frame that is connected to the upper end of the side frame, there have been problems in many respects such as the manufacturing cost, vibration noise, and maintenance of the cutting device.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a combine reaping device that enables low cost, low vibration, low noise, and easy maintenance by simplifying a transmission system of a pulling device.

  The invention according to claim 1 is a front view in which pulling devices composed of orbiting lugs are arranged side by side by the number of cutting ridges, upper transverse frames are provided to support the upper ends of the pulling devices, and the upper transverse frame is the upper side. A rectangular cutting frame is configured to support a conveying device for transferring the harvested cereal meal by the cutting frame, and a center frame extending rearward from an intermediate portion of a lower transverse frame serving as a lower side of the cutting frame is provided, The rear end of the frame is pivotally supported by a cutting pivot on the machine body frame side so as to be movable up and down, and an upper connecting member is provided between the cutting pivot supporting shaft and the upper transverse frame, A transmission shaft that receives power from the cutting rotation support shaft and drives the pulling device is provided inside the connecting member and the upper transverse frame.

  The harvesting device and the transport device including the pulling device pulling device are supported by an upper connecting member and a center frame that are connected to the upper and lower sides of the cutting frame so as to be movable up and down, and are installed in the upper connecting member and the upper transverse frame. The pulling device is driven by the pulling transmission system. Therefore, the reaping device can improve the support rigidity of the reaping device by the upper connecting member, stabilize the left-right balance and simplify the transmission system, reduce the manufacturing cost, improve the durability, and reduce the vibration and operation. Noise reduction and easy maintenance are possible.

According to a second aspect of the present invention, in the configuration of the first aspect, the upper connecting member includes a speed change portion that changes a drive speed transmitted by the power transmission shaft, and the speed change portion is disposed above the cutting rotation support shaft. It is arranged at the height position of the control part.
In the reaping device, the transmission unit is arranged in the vicinity of the steering unit by disposing the transmission unit of the pulling transmission system at the height position of the steering unit above the cutting rotation support shaft.

According to a third aspect of the present invention, in the configuration of the second aspect, the upper connecting member is provided with a speed change operation part for changing the speed of the speed change part between the transport device and the operation panel of the control part. It is characterized by that.
The reaping device is configured in the vicinity of the control unit while securing the grain transporting path by disposing the operation unit of the transmission unit of the pulling transmission system closer to the control unit than the transfer device.

  According to the first aspect of the present invention, since the cutting frame is supported by the upper connecting member and the center frame at an intermediate portion between the upper side and the lower side, the cutting device improves the support rigidity of the device and balances left and right. And the pulling device is driven by a simple transmission system installed in the upper connecting member and the upper crossing frame, which reduces manufacturing costs, improves durability, and reduces vibration and noise during operation. Maintenance can be facilitated.

  According to the second aspect of the present invention, since the speed change part of the induction transmission system is arranged in the vicinity of the control part, in addition to the effect of the first aspect, the pulling speed is increased in the control part without getting off the fuselage. Since the adjustment operation can be performed, cutting can be performed efficiently.

  According to the invention described in claim 3, since the speed change operation unit is arranged between the transport device and the operation panel, in addition to the effect of the invention described in claim 2, the raising speed is adjusted in parallel with the driving operation. Therefore, it can be raised and adjusted according to how the grain hangs.

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
FIG. 1 is a side view of a front part of an airframe showing an example of a combine to which the present invention is applied.
The combine is provided with a reaping device 5 that can be moved up and down in front of the body frame 1 supported by the crawler traveling device 2 and is pivotally supported on a cutting rotation support shaft 8 positioned at the front end of the body frame 1. A threshing section 3 and a storage tank section (not shown) are arranged behind the moving support shaft 8, and a control section 4 and a driving section 56 are arranged vertically on the side of the cutting rotation supporting shaft 8.

  The reaping device 5 includes two transverse frames 13 and 10 that extend in the vehicle width direction, and constitutes a reaping frame 7 in which both ends are connected by left and right side frames 11 and 12, and is conveyed to the reaping frame 7. Are provided with a center frame 6 extending rearward from the lower transverse frame 10 and an upper connecting member 9 extending rearward from the upper transverse frame 13, and the center frame 6 and the upper connecting member. The reaping device 5 is configured to be movable up and down by pivotally supporting the rear end portion of 9 on the reaping rotation support shaft.

  A cutting blade device 21 is attached to the lower transverse frame 10, and the bases of a plurality of front and rear weed ridges 16 are fixed at predetermined intervals on the left and right, and a weed body 17 attached to the tip of the weed ridge 16. The pulling device 18 constituted by the circular lugs standing on both sides of the planting stock is provided for each cutting line, and a lug-type scraping device 19 is provided at the lower rear of each pulling device 18. Further, the upper end of the pulling device 18 hangs the drooping frames 27 from the upper transverse frame 13, and supports the arrangement of the number of cutting lines side by side with the drooping frames 27.

  As for the drive of the pulling device 18, as shown in FIG. 2 which is a structural perspective view of the transmission system of the reaping device 5, the upper connecting member 9, the upper transverse frame 13, the hanging frame 27,. , 13d and 27d are provided to constitute a transmission system connected to the pulling transmission shafts 18d for driving the pulling device 18. The upper connecting member 9 is configured with a transmission unit 9 a that changes the transmission ratio by a gear or a belt, and the transmission unit 9 a is disposed in the vicinity of the operation panel 4 a of the control unit 4. For example, the operation lever 9b is arranged between the operation panel 4a on the side of the tip guide case 25a for transferring the tip of the harvested grain.

  Further, regarding the driving of the scraping device 19, the center frame 6, the lower transverse frame 10, and the left and right side frames 11, 12 are provided with transmission shafts 6d, 10d, 11d, 12d therein by pipe members, and the scraping device 19 is provided. The transmission system connected to the drive transmission shaft 19d.

  The reaping device 5 having the above-described configuration is supported by the upper linking member and the center frame so that they can be moved up and down by the upper linking member and the center frame via the reaping frame. The pulling device is driven by the pulling transmission system. Therefore, the reaping device can achieve low cost, low vibration, low noise, and easy maintenance by improving the support rigidity of each device by a simple upper connecting member and a simple pulling transmission system.

  Further, the transmission shaft 9d of the upper connecting member 9 is changed and adjusted by a two-speed switching transmission gear mechanism or a belt continuously variable transmission mechanism by the counter gear shaft 9c as shown in FIG. The transmission unit 9a is provided, and the transmission unit 9a is disposed at the height position of the operation panel 4a of the control unit 4 above the cutting rotation support shaft 8, so that the transmission unit 9a can be operated from the control unit 4. it can. Further, the transmission unit 9a of the upper connecting member 9 secures the reliability of the transport device 25 by disposing the operation lever 9b between the tip guide case 25a of the transport device 25 and the operation panel 4a of the control unit 4. However, the speed change operability from the control unit 4 can be ensured.

  Further, as shown in FIG. 4, the pulling device 18... Is an open perspective view, and the left and right side frames 11, 12 that support the connecting portions 13 a, 13 a of the upper transverse frame 13 and the pulling device 18. In the case where the pulling device 18 is clogged with the pulling device 18 by starting the maintenance of the equipment by making it possible to rotate separately from the upper connecting member 9 and making all the pulling devices 18 tiltable to the non-working position. Can be easily eliminated, so that the harvesting operation can proceed without disturbing the operation plan of the combine.

(Narrow guide)
Next, the narrow guide provided in the side part of the cutting device will be described.
5 and 6 are a plan view and an enlarged view of a main part of the narrow guide, respectively, when the narrow guide is extended.
The narrow guide 31 is a rod-like member that extends long in the front-rear direction along the uncut (left) side of the cutting device 5, and supports the tip end portion 31 a so as to be pivotable sideways, and the cutting device at a rear position thereof. This is configured to include an overhang mechanism including a pivot arm 32 and a connecting link 33 that are pivotally supported by the pulling pipe.

  The pivot arm 32 pivotally supports the pivot shaft 32a on the base side in the vicinity of the pulling pipe 18p of the reaping device 5, and is operated to extend and retract to the arms 32b and 32b formed integrally with the pivot shaft 32a. Cables 34a and 34b are connected to each other so as to be rotatable, and the connecting link 33 is pivotally supported by the support shaft 32c at the tip, and either the rotating arm 32 or the connecting link 33 is provided. A catcher 35 for catching the other side with the other side interposed therebetween, and a stopper 36 for restricting the rotation range with a predetermined fixing force at the protruding position where the connecting link 33 exceeds the fulcrum while frictionally restraining the mutual rotation position. With. The illustrated catcher 35 and stopper 36 are an example in which the rotating arm 32 is integrally provided.

  In the narrow guide 31 having the above-described configuration, the rotating arm 32 is rotated by operating the overhanging and storing cables 34a and 34b, and when the cutting cable 34a is pulled during the cutting operation, the connecting link 33 is interposed. Thus, the narrow guide 31 is pushed out to the side of the reaping device 5, the stopper 36 is restricted from rotation at the extended position where the connecting link 33 exceeds the fulcrum, and vibration and noise can be suppressed by frictional restraint. By running forward F in this state, the uncut grain culm can be guided to the outside of the reaping device 5. Further, when an excessive external force exceeding the fixing force of the stopper 36 is received, the narrow guide 31 is retracted to the storage side due to the breakage, so that the deformation of the narrow guide 31 can be avoided.

  Further, when storing the narrow guide 31, the connecting link 33 is captured by the catcher 35 at the storage position where the narrow guide 31 is along the cutting device 5 by pulling the storage cable 34 b. Therefore, it is possible to prevent the narrow guide 31 from protruding due to vibration or the like during traveling.

  As described above, the narrow guide 31 having the above-described configuration can ensure reliable operation and safety while suppressing vibration and noise, and the operation of overhanging and storing can be performed from the control unit or the like without getting out of the body. Since it becomes possible by operating the cables 34a and 34b, the workability can be improved.

  In addition, as shown in FIG. 7 which is an enlarged plan view of the main part at the time of extension (a) and at the time of storage (b) of another configuration example, a small-diameter round for restraining on the other side with respect to the catcher 35a on one side. By providing the rod-shaped arm 33a, it is possible to reliably restrain and hold the storage position by the simple small catcher 35a.

Side view of the main part of the combine Perspective perspective view of the transmission system of the cutting part Shift transmission system development diagram Perspective view of the pulling device in the open state Plan view when the narrow guide is extended Fig. 5 is an enlarged view of the main part of the narrow guide in Fig. 5. The principal part enlarged plan view of the time of extension (a) and the time of storage (b) of another configuration example

Explanation of symbols

DESCRIPTION OF SYMBOLS 4 Control part 4a Operation panel 5 Cutting device 6 Center frame 6d Transmission shaft 7 Cutting frame 8 Cutting rotation support shaft 9 Upper connection member 9a Transmission part 9b Operation lever (transmission operation part)
9d Transmission shaft 10 Lower transverse frame 10d Transmission shaft 11 Side frame 11d Transmission shaft 12 Side frame 13 Upper transverse frame 13d Transmission shaft 18 Pulling device 18d Pulling drive shaft 19 Stucking device 25 Conveying device 25a Tip guide case 27 Dropping frame 27d Transmission shaft

Claims (3)

  The pulling device (18) made up of orbiting lugs is arranged side by side by the number of cutting lines, and an upper transverse frame (13) for supporting the upper ends of the pulling devices (18) is provided, and the upper transverse frame (13) is placed on the upper side. The lower part which comprises the rectangular-shaped cutting frame (7) by the front view and supports the conveying apparatus (25) which conveys the cutting cereal grain by the cutting frame (7), and becomes the lower side of the cutting frame (7) A center frame (6) extending rearward from the intermediate portion of the transverse frame (10) is provided, and the rear end portion of the center frame (6) is pivotally supported so as to be moved up and down by a cutting pivot shaft (8) on the machine body frame side. An upper connecting member (9) is provided between the cutting rotation support shaft (8) and the upper transverse frame (13) to connect the upper connecting member (9) and the upper transverse frame (13). Internal cutting pivot ( ) Combine the cutting device, characterized in that provided by receiving a power transmission shaft for driving the inking unit (18) to (9d, 13d) from.   The upper connecting member (9) is provided with a speed change portion (9a) for changing the drive speed transmitted by the power transmission shaft (9d, 13d), and this speed change portion (9a) is connected to the cutting rotation support shaft (8). 2. The combine harvester according to claim 1, wherein the combine harvester is arranged at a height above the control section (4).   In the upper connecting member (9), a speed change operation part (9b) for speed changing the speed change part (9a) is arranged between the transport device (25) and the operation panel (4a) of the control part (4). The combine harvester according to claim 2, wherein the combine harvester is provided.

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