JP2004237978A - Crawler supporting device of crawler type farming machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that a riding machine for plant husbandry is constituted so as to be high in vehicle height in order to perform weeding, intertillage and the like while traveling between crops, furrows and the like, but the fore-and-aft balance of a barycentric position is easily changed due to the mounting of a variety of working machines to the riding machine for plan husbandry. <P>SOLUTION: For mounting a crawler to the riding machine for plant husbandry, there is provided to a machine body a crawler frame 4 comprising: a pair of right and left lower side parts 11; a pair of right and left upper side parts 13 positioned at the inside of the machine body inner than the lower side parts 11; and a front side part 40 an a rear side part 41 that erect in oblique directions in a frontal view and connect the pair of lower side parts 11 and the pair of upper side parts 13 at fore-and-aft ends of the lower side parts 11 and the upper side parts 13. The crawler 5 is wound around between forward rolling wheels 1 and backward rolling wheels 2 that are arranged at the lower side parts 11 of the crawler frame 4, and between driving sprockets 6 that are arranged above the upper side parts 13 and supported to both right and left sides of a transmission case 7 so as to form a triangle shape therebetween. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a configuration of a farm work machine (hereinafter, a riding management machine) having a triangular crawler.

Conventionally, as shown in Japanese Utility Model Laid-Open No. 02-143325, a crawler-type agricultural work machine (crawler vehicle) including an engine, a transmission case, and a driver's seat, and having a work machine vertically connected via a lift mechanism behind the driver's seat. )It has been known.
Japanese Utility Model Publication No. 02-143325 JP-A-59-176168

  Among the agricultural work machines, for example, in a riding management machine, since the work such as middle tillage and weeding is performed while running between crops and running between ridges, etc., the height is set high, and various work machines are mounted. Because of this, the balance before and after the position of the center of gravity is easy to change.

In view of the above problem, the present invention includes an engine (E), a transmission case (7), and a driver's seat (8), and a lift mechanism (8) is provided behind the driver's seat (8). 34) a crawler-type agricultural working machine in which a working machine (9) is vertically movable via
The crawler-type agricultural work machine includes a pair of lower left and right sides (11, 11) including a front end rolling wheel (1) and a rear end rolling wheel (2), and a vehicle body inside the lower side (11, 11). And a pair of left and right upper sides (13, 13), and lower and upper sides (11) and front and rear ends of the upper and lower sides (13), respectively. A front-view portal type crawler frame (4) having a front side (40) and a rear side (41) connecting the (11) and the upper side (13) is provided,
A front end wheel (1) and a rear end wheel (2) provided on a lower side (11) of the crawler frame (4); and a higher position than the upper side (13) and a transmission case (7). A crawler support device for a crawler-type agricultural work machine, wherein a crawler (5) is wound around a triangular shape between a drive sprocket (6) supported on both left and right sides.

  In the agricultural working machine configured as described above, the driving sprocket 6 is rotated by the driving of the engine E via the transmission mechanism in the transmission case 7. The crawler 5 wound around the driving sprocket 6 rotates while being guided by the front and rear end rollers 1, 2, and the like.

According to the invention of claim 1, the engine (E), the transmission case (7), and the driver's seat (8) are provided, and the work implement (9) is provided behind the driver's seat (8) via a lift mechanism (34). In a crawler-type agricultural work machine that is connected vertically
The crawler-type agricultural work machine includes a pair of lower left and right sides (11, 11) including a front end rolling wheel (1) and a rear end rolling wheel (2), and a vehicle body inside the lower side (11, 11). And a pair of left and right upper sides (13, 13), and lower and upper sides (11) and front and rear ends of the upper and lower sides (13), respectively. A front-view portal type crawler frame (4) having a front side (40) and a rear side (41) connecting the (11) and the upper side (13) is provided,
A front end wheel (1) and a rear end wheel (2) provided on a lower side (11) of the crawler frame (4); and a higher position than the upper side (13) and a transmission case (7). A crawler (5) is wound around a triangular shape between a drive sprocket (6) supported on the left and right sides and a drive sprocket (6). It is easy to cross over ridges, crops, and the like, and can run stably irrespective of the movement of the center of gravity of the vehicle as the work machine (9) moves up and down.

  1 to 3, the crawler frame 4 has a pair of left and right independent structures, but may be integrally connected by a gate-shaped horizontal member in a front view. On the lower side portion 11 (horizontal frame portion) of each of the left and right crawler frames 4, a front end rolling wheel 1, a rear end rolling wheel 2, an intermediate rolling wheel 3 and the like are arranged so as to be in rolling contact with substantially the same plane. The lower side of the crawler 5 can be extended. The rear end rolling wheel 2 is slidably inserted into the pipe of the lower side 11 by the slider 12 so as to be slidable back and forth, and is moved back and forth between the lower side 11 by the telescopic cylinder C2 to reduce the tension of the crawler 5. adjust. The upper side 13 of the crawler frame 4 is fitted with a rail having an upper surface with a concave cross section in front view, and the lower side 14 of the upper frame 10 is fitted to the upper side 13 so as to be slidable back and forth. Reference numerals 40 and 41 denote a front side and a rear side (inclined frame) which connect the lower side 11 of the crawler frame 4 to the lower end and fix the upper end inside the vehicle body relative to the drive sprocket 6.

  The upper frame 10 has the lower side portion 14 and the upper side portion 15 on both left and right sides, and the left and right upper side portions 15 are connected by a horizontal frame 16 to form an integral structure.

  In addition, a vertical frame 17 is provided at the center of the horizontal frame 16 to support the mission case 7, and an engine base 18 is provided at the front to mount the engine E, and a seat base 19 is provided at the rear. To support the driver's seat 8.

  A step floor 20 for receiving the driver's feet is attached to the upper surface of the upper frame 10. 42 is a front side portion of the upper frame 10, and 43 is a rear side portion.

  The transmission case 7 has a traveling drive shaft 53 protruding on both left and right sides of a lower end portion, and a sprocket shaft 21 is connected to an outer end of the traveling drive shaft 53. The sprocket shaft 21 is attached to an upper side portion 15 of the upper frame 10 by a bracket 22. Bearing. The driving sprocket 6 is attached to the end of the sprocket shaft 21 on the outer side of the upper frame 10 so as to be positioned within the area where the crawler 5 is wound.

  The transmission case 7 has a transmission, a steering clutch, and the like, and transmits the power input from the engine E via the belt 23 to the left and right sprockets 21, and the upper frame 10 via the belt 24 from the middle thereof. The power is transmitted to the input shaft of the PTO transmission case 26 of the PTO shaft 25 mounted above. 27 is a hydraulic pump.

  Operating mechanisms such as a clutch lever 28, a shift lever 29, and a steering lever 30 are provided on the mission case 7, and a lift lever 31 is provided on the side of the driver's seat 8. The telescopic cylinders C1 and C2 expand and contract by hydraulic or electric rotation.

  The work machine 9 is, for example, a cultivator having a rotary weeding claw 32. It can be moved up and down by the expansion and contraction of the lift cylinder 35 by the hydraulic pressure of the pump 27. Reference numeral 36 denotes a transmission shaft that interlocks between the PTO shaft 25 and the input shaft of the work machine 9. 37 indicates ridges, 38 indicates grooves, and 39 indicates crops.

  4 and 5, the difference from the above example is that the front side portion 40 and the rear side portion 41 of the crawler frame 4 are raised, and the upper frame 10 is directly supported on the upper side portion 13 so as to be slidable. The upper frame 10 has no distinction between the lower side and the upper side as in the previous example. 6 to 9, the point different from the above example is that the upper side 13 of the crawler frame 4 is positioned on both left and right sides of the vertical frame 17 of the upper frame 10, and the guide frame 44 extends inward from the upper side 13. The guide frame 44 is provided so as to be able to expand and contract along the slide frame 45 formed of a square pipe on the vertical frame 17 side. Further, a frame rail 46 having a U-shaped cross section is provided at an inner end of the slide frame 45, and slide frames 47 on both sides of the upper frame 10 are fitted to the frame rail 46 to relatively slide in the front-rear direction. Making it possible. The front and rear sliding between the slide frame 47 and the frame rail 46 is performed by expansion and contraction of the telescopic cylinder C1.

  As described above, the front and rear sliding between the upper frame 10 and the crawler frame 4 is performed between the slide frame 47 and the frame rail 46. The tread adjustment may be performed manually by moving the left and right crawler frames 4 left and right by expansion and contraction between the guide frame 44 and the slide frame 47. It may be provided.

  10 and 11, the difference from the above example is that the upper frame 10 is added to the upper side portion 13 of the crawler frame 4 at a higher height by the additional frame 48. The extension frame 48 has a column 50 in the vertical direction at the front and rear ends of a vertical frame 49 in the front and rear direction. The angle member 51 is overlapped on the upper side 13 on the lower side and can be fastened and fixed with bolts. A lateral slide frame 52 can be attached to the front and rear ends of the extension frame 48 by bolting. The slide frame 52 can be fitted to the front and rear square pipes of the upper frame 10 to adjust the tread. Configuration.

  The counter chain case 54 having the sprocket shaft 21 of the driving sprocket 6 is attached between the upper side portion 13 of the crawler frame 4 and the vertical frame 49 of the extension frame 48 on the upper frame 10 side. The power is transmitted from the left and right drive shafts 53 of the case 7. In FIG. 12, the difference from the above example is that the counter chain case 54 is located within the thickness width of the column 50 and the vertical frame 49 of the extension frame 48. When the ground height of the upper frame 10 is increased by the extension frame 48, the counter chain case 54 hardly comes into contact with the ridges 37, crops, and the like, and the effective height can be increased.

It is a side view. It is a top view. It is a partial front view. It is a side view which shows a partly different Example. It is the front view. It is a side view which shows a partly different Example. It is a side view showing the operation. It is the top view. It is the front view. It is a perspective view which shows a partly different Example. It is a rear view. It is a rear view which shows another Example partially.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Front end wheel 2 Rear end wheel 3 Intermediate wheel 4 Crawler frame 5 Crawler 6 Drive sprocket 7 Transmission case 8 Driver's seat 9 Work implement 10 Upper frame C1 Telescopic cylinder E Engine

Claims (1)

Crawler-type agricultural work comprising an engine (E), a transmission case (7), and a driver's seat (8), and a working machine (9) movably connected to the rear of the driver's seat (8) via a lift mechanism (34). On the machine,
The crawler-type agricultural work machine includes a pair of lower left and right sides (11, 11) including a front end rolling wheel (1) and a rear end rolling wheel (2), and a vehicle body inside the lower side (11, 11). And a pair of left and right upper sides (13, 13), and lower and upper sides (11) and front and rear ends of the upper and lower sides (13), respectively. A front-view portal type crawler frame (4) having a front side (40) and a rear side (41) connecting the (11) and the upper side (13) is provided,
A front end wheel (1) and a rear end wheel (2) provided on a lower side (11) of the crawler frame (4); and a higher position than the upper side (13) and a transmission case (7). A crawler support device for a crawler-type agricultural working machine, wherein a crawler (5) is wound in a triangular shape between a drive sprocket (6) supported on both left and right sides.

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