JP3588825B2 - Crawler support device for crawler type agricultural work machine - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a configuration of a farm work machine (hereinafter, a riding management machine) having a triangular crawler.
[0002]
2. Description of the Related Art
The riding management machine is used to carry out work such as middle plowing and weeding while running between crops and between furrows.Therefore, the height is high and various work machines are installed. It is easy to change.
[0003]
[Means for Solving the Problems]
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 the working machine (9) is vertically movable via
The crawler-type agricultural work machine includes a pair of left and right lower sides (11, 11) including a front end rolling wheel (1) and a rear end rolling wheel (2), and a vehicle inner side with respect to 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 roller (1) and a rear end roller (2) provided on a lower side (11) of the crawler frame (4); and an upper side (1) disposed above the lower side (11). 3 ) A crawler support device for a crawler-type agricultural work machine, wherein a crawler (5) is wound around the drive sprocket (6) bearing in a triangular shape.
[0004]
[Action and effect of the invention]
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 .
[0005]
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 freely movable up and down,
The crawler-type agricultural work machine includes a pair of left and right lower sides (11, 11) including a front end rolling wheel (1) and a rear end rolling wheel (2), and a vehicle inner side with respect to 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 roller (1) and a rear end roller (2) provided on a lower side (11) of the crawler frame (4); and an upper side (1) disposed above the lower side (11). 3 ) The crawler (5) is wound around the drive sprocket (6) bearing in 3 ) in a triangular shape so as to form a crawler support device for a crawler type agricultural work machine. 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.
[0006]
【Example】
The agricultural working machine shown in FIGS. 1 to 3 shows an example in which the crawler support device of the present invention is used.
Although the crawler frame 4 of the agricultural work machine has a pair of left and right independent structures, these may be integrally connected by a gate-shaped horizontal member when viewed from the front. 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.
[0007]
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.
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.
[0008]
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 connected to an outer end thereof. 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.
[0009]
In the transmission case 7 has a transmission and steering clutches and the like, the power input from the engine E by a belt 23, as well as the transmission to the left and right sprockets 21, the upper frame over via the belt 24 from the middle The power is transmitted to the input shaft of the PTO transmission case 26 of the PTO shaft 25 mounted on the system 10. 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.
[0010]
The work machine 9 is, for example, a cultivator having a rotary weeding claw 32. The cultivator is attached to a lift arm 34 that rotates up and down around a lift axis 33 with respect to a rear portion of the upper frame 10. It can move 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.
[0011]
The agricultural working machine shown in FIGS. 4 and 5 is a diagram showing a main part of the crawler support device of the present invention. The difference from the above example is that the front side 40 and the rear side 41 of the crawler frame 4 are raised. The upper frame 10 is slidably provided on the upper side 13 by directly supporting the upper frame 10. There is no distinction between the lower side and the upper side of the upper frame 10 as in the previous example. The agricultural machine shown in FIGS. 6 to 9 show another embodiment of the present invention, the upper portion 13 of the crawler frame 4, by positioning the right and left side portions of the vertical frame 17 parts of the upper frame 10, the upper side The guide frame 44 is protruded inward from the portion 13, and the guide frame 44 is provided so as to be able to expand and contract horizontally along a 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.
[0012]
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 guide tread adjusted by moving the left and right Kurorafure over arm 4 to the right and left by the expansion and contraction between the frame 44 and the slide frame 4 7 may be performed manually, but stretch between the slide frame 45 and the guide frame 44 This may be performed by providing a cylinder.
[0013]
Further, the agricultural working machine shown in FIGS. 10 and 11 is configured such that the upper frame 10 is added on the upper side portion 13 of the crawler frame 4 by the extension frame 48 at a high height. 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.
[0014]
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.
[Brief description of the drawings]
FIG. 1 is a side view of an agricultural work machine using a crawler support device of the present invention .
FIG. 2 is a plan view.
FIG. 3 is a partial front view.
FIG. 4 is a side view showing a main part of the present invention .
FIG. 5 is a front view showing a main part of the present invention .
FIG. 6 is a side view showing a partly different embodiment.
FIG. 7 is a side view showing the operation.
FIG. 8 is a plan view thereof.
FIG. 9 is a front view thereof.
FIG. 10 is a perspective view showing another embodiment.
FIG. 11 is a rear view thereof.
FIG. 12 is a rear view showing a partly different embodiment.
[Explanation of symbols]
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 machine
11 Lower side
13 Upper side 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 left and right lower sides (11, 11) including a front end rolling wheel (1) and a rear end rolling wheel (2), and a vehicle inner side with respect to 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 roller (1) and a rear end roller (2) provided on a lower side (11) of the crawler frame (4); and an upper side (1) disposed above the lower side (11). 3 ) A crawler support device for a crawler-type agricultural working machine, wherein a crawler (5) is wound around a triangular shape between a drive sprocket (6) and a drive sprocket (6) bearing the same.

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