JP2008182991A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester capable of performing bulging operation of grain culm guide rods, using a light operation force and being readily operable, even by women and children. <P>SOLUTION: The combine harvester has first, a front end of the grain culm guide rod (5) on the front side, mounted on the side of a reaping device (4) and the rear end of the grain culm guide rod (6) on the rear side, supported on the side of an undercarriage (2), and the rear end of the grain culm guide rod (5) on the front side is freely bendably connected to the front end of the grain culm guide rod (6), on the rear side and the front end of a supporting rod (8) pivotally supported so as to be freely turned about the vertical shaft on the side of the undercarriage (2), connected freely slidably in the longitudinal direction of the grain culm guide rod (6) on the rear side relatively to the intermediate part of the grain culm guide rod (6) on the rear side. Secondly, a lever (10) provided on the side of a maneuvering seat (23) is linked through a linking mechanism to the supporting rod (8), and the linking mechanism is arranged at a position below a threshing inlet funnel (14a) and on the rear side of a suspension table (13) for turnably supporting the reaping device (4) in the vertical directions. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a combine.

At the time of harvesting with a combine, a grain culvert guide basket must be provided on the uncut side of the combine to prevent the uncut grain from falling into the body of the combine and being caught.
For example, as exemplified in Patent Document 1, the front end portion of the front side rice cake guide rod is attached to the cutting device side, and the rear end portion of the rear side rice cake guide rod is supported on the chassis side. The front end portion of the front side rice bran guide rod is connected to the front end portion of the front side rice cake guide rod by bending the front end portion of the front side rice cake guide rod. The thing of the structure connected with the refractive connection part of a rear-end part and the front-end part of a rear side grain guide rod is known.
JP 2006-42650 A

  The configuration exemplified in Patent Document 1 is a configuration in which the bending connection portion between the front and rear culm guide ridges is extended outward by a flexion and extension link, and the culm guide ridge is switched to an active state. .

  However, in the case of such a configuration, in order to push out the bending connecting portion which is the maximum overhanging portion of the grain guide rod to the working position, the expansion / contraction length of the bending / extending link must be increased, and by extension, the bending / extending link is extended. There is a disadvantage that the operation stroke and the operation load for extending the cereal guide rod are increased, resulting in poor operability for women and girls.

In order to solve the above problems, the present invention takes the following technical means.
That is, in the invention according to claim 1, the front end portion of the front side culm guide rod (5) is attached to the cutting device (4) side, and the rear end portion of the rear side culm guide rod (6) is attached to the chassis (2) side. And the rear end of the front grain guide rod (5) and the front end portion of the rear grain guide rod (6) are refractably connected so that the vertical axis can be freely rotated on the chassis (2) side. The tip of the pivoted support rod (8) is slidably connected in the longitudinal direction of the rear kernel guide rod (6) to the intermediate portion of the rear kernel guide rod (6). It is a combine that is characterized.

  As a result, when the support basket 8 is rotated outward, the rear grain guide guide 6 connected to the tip of the support basket 8 opens outward, and the front end of the rear grain guide guide 6 is opened. The front grain guide guide 5 connected to is also opened outward. Accordingly, since the culm guide culvert can be switched to a working state by an operation of slightly pushing out the intermediate portion of the rear cereal guide culm 6, an operation stroke for extending the culm guide culm and The operation load is small.

  The invention according to claim 2 connects the lever (10) provided on the cockpit (23) side and the support rod (8) via a connecting mechanism, and the connecting mechanism is connected to the threshing inlet funnel ( The combine is characterized in that it is arranged at the lower side of 14a) and at the rear side of the suspension base (13) that supports the reaping device (4) so as to be rotatable up and down.

  Thereby, the maintenance of the connection mechanism which connects the lever 10 and the support rod 8 can be performed easily.

  According to the first aspect of the present invention, it is possible to provide a combine that is easy for women and girls to operate as the front side culm guide bar 5 and the rear side culm guide bar 6 can be operated with a light operating force.

  Further, according to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the maintenance of the linkage mechanism for extending and operating the front corn straw guide rod 5 and the rear corn straw guide rod 6 is easily performed. Therefore, it is possible to shorten the work interruption time and improve the efficiency of the combine work.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
A traveling device 3 is provided below the traveling chassis (chassis) 2 of the combine 1, a harvesting device 4 for harvesting and transferring grain husks is provided at the front part, and the harvested corn straw is taken over from the harvesting device 4 on the upper side. A threshing device 14 for threshing is placed, and a grain storage tank 15 for receiving and storing the threshed grain is placed on the side of the threshing device 14.

  At the front end of the cutting device 4, a weed body 4a is provided, and at the rear side of the weeding body 4a, a pulling device 4b is provided. ) 5 and a narrow guide device 4c connected to the rear narrow guide basket (rear grain basket guide basket) 6 is mounted. The opening / closing operation of the narrow guide device 4c is supported by the link member 12a of the arm opening / closing mechanism 12 provided via the connecting lever 11a of the opening / closing rotating plate 11 by grasping and operating the rotating lever (lever) 10. The shaft 9 is rotated, and a connecting rod (support rod) 8 provided on the support shaft 9 rotates and moves in an elongated hole inside the guide bar 7 provided on the front narrow guide rod 5, The rear narrow guide rods 5 and 6 are configured to rotate (extend) and move to the right outer side, and the front and rear narrow guide rods 5 and 6 protrude and move by cutting, so that the uncut rice cake can be combined into the fuselage. It is the structure separated so that it may not catch on the side.

  First, the overall configuration of the combine 1 will be briefly described. As shown in FIG. 4, a traveling device 3 in which a pair of left and right traveling crawlers 3 a traveling on the soil surface is stretched is disposed below the traveling chassis 2 of the combine 1. A threshing machine 14 is placed. The napped grains are harvested by the harvesting device 4 at the front part of the traveling chassis 2 and transferred to the rear upper part, and the threshing is carried out while being nipped and transferred by the feed chain 16a of the threshing apparatus 14 and the clamping basket 16b. The threshed and selected grain is supplied into the grain storage tank 15 disposed on the right side of the threshing device 14 and temporarily stored.

  As shown in FIG. 4, the front and rear narrow guide rods 5, 6 for separating the napped cereals 5, and each weed body 4 a, and the pulling device 4 b for raising the napped cereals, as shown in FIG. Each of the scraping devices 17a of the scraping and transporting device 17 for scraping the raised kernels, the cutting blade device 18 for harvesting the scraped kernels, and the nipped and transported harvested kernels A reaping device 4 including a root and tip transfer device 19a, 19b, etc., of a cereal scraping transfer device 17 to be delivered to a feed chain 16a of the threshing device 14 and a holding rod 16b is provided. The mowing device 4 is raised and lowered with respect to the soil surface by a telescopic cylinder 20 that is hydraulically driven.

  A support pipe rod 21b provided at an upper end portion of the support rod 21a inclined from the lower front portion to the rear upper portion of the cutting device 4 is rotatably supported by a support device 21c provided on the upper side surface of the traveling chassis 2. When the telescopic cylinder 20 is operated, the cutting device 4 is rotated up and down together with the support rod 21a.

  In the culm transfer path formed by the culm scraping transfer device 17 of the reaping device 4, the presence or absence of supply of the cereal to the threshing device 14 is made by contacting the culm that is harvested and transferred. A cereal sensor 4d for detection is provided.

  As shown in FIG. 4, an operation device 22 for starting and stopping the combine 1 and adjusting each part and the like, and a cockpit 23 are provided at the front portion on the grain storage tank 15 side. An engine 24 is placed below the seat 23.

  In the transmission path of the transmission mechanism 25a in the traveling mission case 25 mounted on the front end of the traveling chassis 2, a potentiometer type vehicle speed sensor 25b for detecting the traveling vehicle speed is provided based on the output. .

  On the rear side of the grain storage tank 15 that discharges the grains stored in the grain storage tank 15 to the outside of the machine, as shown in FIG. Discharge with a vertical orientation, which is mounted so as to be pivotable. A discharge spiral 26c is provided at the upper end portion of the discharge support cylinder 26 so as to extend and retract. The auger 26b is disposed in the front-rear direction so as to be telescopic, pivotable up and down, and pivotable left and right.

  As shown in FIGS. 1 to 3, the narrow guide device 4c is configured such that the front end portion of the rear narrow guide rod 6 is rotatably inserted into the rear end portion of the front narrow guide rod 5 to prevent the narrow guide device 4c from coming off. It is. The front narrow guide rod 5 is pivotally supported by a front support device 27 provided at the front right side of the traveling chassis 2. The front support device 27 supports the receiving rod 27c by front and rear receiving plates 27a and 27b, and the front end of the front narrow guide rod 5 is pivotally supported on the receiving rod 27c so as to be movable forward and backward. A U-shaped guide bar 7 is fixedly provided at a substantially central portion of the narrow guide rod 5 in the front-rear direction.

  A support shaft 9 is rotatably supported on a suspension device (suspension table) 13 provided on the right side of the traveling chassis 2, and the rear end portion of the connecting rod 8 is inserted and fixed to the support shaft 9. At the same time, the front end portion is inserted into the guide bar 7 of the front narrow guide bar 5.

  The suspension device 13 is provided with a rotation lever 10, and the rotation lever 10 is provided with a substantially intermediate portion of the opening / closing rotation plate 11 pivotally supported by a support pin 11b. The opening / closing rotating plate 11 and the link member 12a of the arm opening / closing mechanism 12 are connected by a connecting lever 11a, and the link member 12a is fixed to the support shaft 9. By the turning operation of the turning lever 10, the support shaft 9 is turned through the opening / closing rotating plate 11, the connecting lever 11a, and the link member 12a. The connecting rod 8 is rotated and the front and rear narrow guide rods 5 and 6 are rotated (projected) to the right outside.

  The opening / closing rotating plate 11 provided on the rotating lever 10 is pivotally supported by a support pin 11 b on a support rod 13 a of the suspension device 13, and the long hole 28 a portion of the receiving plate 28 provided on the operating device 22 is replaced with the opening / closing rotating plate 11. Is supported by the receiving pin 11c. By moving the receiving pin 11c through the long hole 28a, the front and rear narrow guide rods 5 and 6 are pivoted to operate in an overhanging state or a contracted state.

  A narrow guide device 4c comprising a front narrow guide rod 5 and a rear narrow guide rod 6 provided on the harvesting device 4 of the combine 1 is provided with a guide bar 7 on the front narrow guide rod 5; A base portion (A) of the connecting rod 8 that connects the traveling chassis 2 is pivotally supported on the traveling chassis 2 by a support shaft 9, and a rotation lever 10 provided on the support shaft 9; The opening / closing rotating plate 11 provided in the vicinity of the operating device 22 is connected to the connecting lever 11a, and the arm opening / closing mechanism 12 of the three-point link mechanism (A) is provided. it can. It also simplifies the structure, reduces costs and funds. Furthermore, the degree of freedom of the setting position can be improved, and development to other models is possible, resulting in cost reduction.

  The link member 12a of the arm opening / closing mechanism 12 of the three-point link mechanism (A) includes a lower side of the threshing inlet funnel 14a of the threshing device 14 and the suspension device 13 of the reaping device 4 as shown in FIGS. It is the structure arranged and provided in the rear part.

  Thereby, by arranging the link member 12a of the arm opening / closing mechanism 12 of the three-point link mechanism (A) on the lower side of the threshing inlet funnel 14a of the threshing device 14 and the rear portion of the suspension device 13 of the reaping device 4, The operating force can be reduced. It also simplifies the structure, reduces costs and funds. Furthermore, the degree of freedom of the setting position can be improved, and development to other models is possible, resulting in cost reduction. Maintenance can be improved.

  As shown in FIG. 1, the rotating lever 10 is provided substantially horizontally on the surface plate of the operating device 22, and the operating device is located in the rotating locus (B) of the rotating lever 10 (in the shaded portion). This is a configuration in which the components provided in 22 do not protrude. In addition, there is no part to be contacted when the rotating lever 10 is operated.

Thereby, when there is no component which contacts at the time of the rotation operation of the said rotation lever 10, operation is easy.
As shown in FIG. 1, the gap between the supply assembly part (L1) and the operation device 22 (L2) is provided substantially horizontally in the (L3) part, as shown in FIG. ing.

Thereby, labor saving of the operation force and easy operation are achieved.
As shown in FIG. 1, the connecting lever 11 a is provided to be connected between the opening / closing rotating plate 11 of the rotating lever 10 and the link member 12 a of the arm mechanism 12. It is possible to change the overhang amount of the front and rear narrow guide rods 5 and 6 so that they can be exchanged for a basket. Furthermore, it is possible to change the length by inserting an adjustment part.

This will improve the adaptability of Nagatoro. In addition, horizontal deployment to each model is possible.
As shown in FIGS. 1 to 3, in the configuration in which left and right support plates 13 a and 13 b are provided on the left and right sides of the suspension device 13, an opening / closing rotating plate 11 provided on the rotating lever 10, and a receiving plate 28 is provided with a friction brake device 13c so that the narrow guide device 4c can be fixed at a predetermined position. Further, a support shaft 9 serving as a pivot is provided at the right outer rear portion of the right support plate 13b to prevent the link member 12a and the connecting rod 8 from coming into contact with each other.

Thereby, a frictional force is applied to the narrow guide device 4c, and it can be fixed at a predetermined position.
As shown in FIG. 1 and FIG. 5, the upper mounting holes 8a for fixing the mounting position of the connecting rod 8 are provided at two locations with a predetermined interval in the vertical direction, and the lower mounting holes 8b are provided for the upper mounting. The vertical position of the narrow guide device 4c can be changed depending on the mounting position of the hole 8a.

Thereby, improvement of the cocoon length adaptability of the cereal can be achieved.
As shown in FIGS. 6 to 11, a manual rotation type adjustment lever 29 is provided, and a chain case 30 is provided at a lower portion of the adjustment lever 29 at a front portion of the traveling chassis 2 with an attachment shaft 30e, and the attachment shaft 30e. Is provided at a substantially central portion in the left-right direction of the airframe 1a. In this chain case 30, a drive sprocket 30a is pivotally supported in the vicinity of the lower end of the adjustment lever 29, and a driven sprocket 30b is pivotally supported, and each of these sprockets 30a, 30b includes: The chain 30c is passed over. The sprockets 30a and 30b are provided with different numbers of teeth. A spring 30f is provided on the mounting shaft 30e, and a nut 30h is screwed on the rear side to prevent the spring 30f from coming off.

  A connecting rod 31 is provided between the driven shaft 30d and the front portion of the rear narrow guide rod 6. By the turning operation of the adjusting lever 29, the narrow guide device 4c is pivoted and moved to the extended state. It is the structure to do. The adjustment lever 29 is provided with a brake fixing device 29a.

  Alternatively, a drive split pulley and a driven pulley are provided in place of the sprockets 30a and 30b, belts are stretched over the pulleys, and the narrow guide device 4c is extended by the belt transmission and rotated to a stored state. It is good also as a structure which moves dynamically.

  A chain 30c extending from each of the sprockets 30a and 30b is bent and provided. At this time, as shown in FIGS. 6 and 11, the chain 30c is provided with a roller 32a and a guide plate 32b. Further, as shown in FIG. 6, the chain case 30 is provided so as to be vertically movable from the cockpit 23 by operating the adjustment lever 29. As described above, it is possible to reduce the operating force, reduce the cost by simplifying the configuration, and reduce the production preparation funds.

Explanatory plan view showing the opening / closing mechanism of the cereal guide rod Plan view for explanation of the cereal guide rod in the storage state Plan view for explanation of grain culvert guide bar in overhanging state Combine side view Side view for explaining part of the combine Front view for explaining a combine in a reference example Plan view for explaining the combine in the reference example Explanatory drawing of cereal guide guide opening and closing mechanism in the reference example Partial plan view in FIG. Explanatory drawing of cereal guide guide opening and closing mechanism in the reference example Part explanatory drawing of the cereal guide guide opening and closing mechanism in the reference example

Explanation of symbols

2 Running chassis (chassis)
4 Harvesting device 5 Front narrow guide rod (front grain rod guide rod)
6 Rear narrow guide 杆 (rear grain ridge guide 杆)
8 Connection rod (support rod)
10 Rotating lever (lever)
13 Suspension device (suspension stand)
14a Inlet funnel 23 cockpit

Claims (2)

  A front end portion of the front side rice cake guide rod (5) is attached to the cutting device (4) side, a rear end portion of the rear side rice cake guide rod (6) is supported on the chassis (2) side, and the front side rice cake guide rod (5) The front end of the support rod (8) which is connected to the rear end portion and the front end portion of the rear grain guide rod (6) so as to be refractable and is pivotally supported on the chassis (2) so as to be rotatable in the vertical axis. The combine is slidably connected in the longitudinal direction of the rear-side grain guide rod (6) to the intermediate portion of the rear-side grain guide rod (6).   The lever (10) provided on the cockpit (23) side and the support rod (8) are linked via a linkage mechanism, and the linkage mechanism is located below the threshing inlet funnel (14a) and a reaping device. The combine characterized by arrange | positioning in the position of the back side of the suspension stand (13) which supports (4) so that rotation up and down is possible.

Images