JP2995121B2 - Work machine transmission for riding agricultural machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission for a working machine of a riding agricultural machine such as a riding fertilizer, a riding seeder or a riding sprayer.

[0002]

2. Description of the Related Art Hitherto, it has been known that a transmission device attached to a fertilizer application device, a spraying device, and the like mounted on a riding agricultural machine is mounted on the body of the riding agricultural machine.

[0003]

In the known transmission of a riding agricultural machine, the body frame is composed of a pair of left and right frames, and is mounted on one of the frames. In order to solve such a problem, mud tends to adhere to the gearshift lever, and a wide upper frame is combined with the upper part of the body frame to also serve as a step frame. The frame is in the way, making the shifting operation difficult.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a riding agricultural machine having a driver's seat provided on an airframe having a traveling device, wherein the airframe is constructed by connecting an upper frame and a lower frame to each other. Is connected to the lower frame by a connecting member projecting upwardly in a curved manner, a transmission for the working machine is disposed inside a portion of the connecting member surrounded by the curved portion, and a transmission lever is provided outside the transmission. The above-mentioned problem was solved by locating.

[0005]

While the work is being performed by the riding agricultural machine, the transmission is located at a high position because it is located inside a portion surrounded by a connecting member that protrudes upward and connects the rear portion of the upper frame to the lower frame. This makes it possible to reduce the possibility of mud sticking to the gear shift lever, and to easily operate the gear shift lever by inserting a hand from between the connecting members when performing a gear shift operation.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to a riding fertilizer seedling planting machine shown in the drawings. A main frame 1 is composed of an upper frame 2 and a lower frame 3, and the upper frame 2 The front portions of the upper vertical frames 2a, 2a are connected by being bent inward, and a little forward from the middle is welded by the upper horizontal frame 2b, and the rear portion is upwardly curved in a side view so as to be curved and projected in a plan view. The lower frame 3 is formed by welding to the outside of the front middle portion of the U-shaped connecting member 2c having a rear opening.
The front ends of the lower vertical frames 3a, 3a having an interval smaller than a are welded to the transmission case mounting plate 5, and the rear portion is connected to the lower horizontal frame 3b extending to both sides to form an inverted trapezoidal frame when viewed from the front. Further, the upper part of the transmission case mounting plate 5 is welded to the upper horizontal frame 2b in the middle of the upper frame 2, and the horizontal pipes 8 are mounted on the seat frames 7, 7 standing on the rear part of the lower frame 3. The upper frame 2 and the lower frame 3 are welded and both ends are fixed to the inner surface near the top of the connecting member 2c, and the lower rear end of the connecting member 2c is fixed to both ends of the lower horizontal frame 3b via connecting metal. Are connected in a two-story form.

The transmission case 10 has a rear surface screwed to the transmission case mounting plate 5 and a right side surface screwed to a metal welded to the upper vertical frame 2a on the side thereof. The engine base 12 is attached to the front lateral portions of the frames 2a, 2a, and the engine 13 is attached to the engine base 12 via vibration-proof rubber or the like. Therefore, the engine 13 and the transmission case 10 can be separately removed. it can. Further, a rear axle case 14 for transmitting to the left and right rear wheels 11, 11 is attached to the lower horizontal frame 3b.

At the rear of the top link 15 and the lower links 17, 17 whose front parts are pivotally supported by the seat frames 7, 7, a seedling mounting table 18, a planting body 19, and a float 20,.
The planting device 21 consisting of
The fertilizer application pipes 22... Corresponding to the respective implants 19... Are mounted, and when the hydraulic cylinder 23 interposed between the rear axle case 14 and the top links 15, 5 expands and contracts, 21 and fertilizer pipes 22 rise and fall.

A transmission case 26 of a liquid feed pump 25 composed of four (preferably increasing or decreasing in accordance with the number of the fertilizer pipes 22) constant-pressure pumps for feeding the pasty fertilizer or liquid fertilizer to the fertilizer pipes 22. Bolts 28 and 28 are respectively screwed to upper and lower portions of a pair of front and rear mounting plates 27 which are superposed and fixed to the lower vertical frame 3a from inside, and the sprocket 31 of the pump drive shaft 30 is connected to the input shaft 32 of one pump.
Is transmitted through a chain 34 to one of the sprockets 33 attached to the pump, and the other sprocket 35 is attached to a sprocket 36 attached to the input shaft of the next pump.
, And likewise sequentially to other pumps.

The transmission 38 to be transmitted to the pump drive shaft 30 is composed of a main transmission and an auxiliary transmission, and a lower portion of a transmission transmission case 39 provided on the front surface thereof is provided with the liquid transmission pump 25. Lower vertical frame 3 immediately after
mounting plates 40a, 4 which are superimposed on front and back and screwed on the top
0b, and the upper part is bolted 41, 41
The mounting plate 42 having an L-shape in a plan view screwed on the inside of the connecting member 2c is overlapped, and the receiving member 42a fitted from the outside is attached.
Is superimposed on the mounting plate 42a and fastened with bolts 43, 43, so that the transmission 38 has a mountain-like connecting member 2c above the lower vertical frame 3a in a side view as shown in FIG. The front transmission lever 45 and the sub transmission lever 46 are also interposed between the lower vertical frame 3a and the connecting member 2c as shown in FIG. Transmission input sprocket 4
7 is driven via a chain 51 by a driving sprocket 50 attached to a driving shaft 48 connected to the PTO shaft of the transmission case 10, and a sprocket 53 of an output shaft 52 of the transmission 38 is connected to the pump driving shaft via a chain 55. It is operatively connected to 30 sprockets 56. Also,
Since the transmission 38 is located within the outer diameter of the rear wheel 11 in a side view, the transmission 38 is protected by the rear wheel 11.

Further, the suction port of the liquid feed pump 25 is connected to fertilizer tanks 58, 58 disposed on both sides of the front part of the body by suction hoses 59, and the discharge ports of the pumps are front hoses 60,. The fertilizer application pipes 22 are connected via indicators 61 and rear hoses 62 attached to the top link 15. 63 is a drain hose, 64 is an auxiliary step, and 65 is a front wheel.

In the above-mentioned riding fertilizer rice transplanter, when the planting device 21 is grounded while the planting device 21, the liquid feeding pump 25, and the traveling device are driven, the planting body 19 of the planting device 21 is loaded with seedlings. The seedlings on the table 18 are scraped one by one and planted in a field.・ Extrude from and fertilize in soil. During the operation, the rear wheel 11 jumps up the mud, but the transmission 38 moves upward to the connecting member 2c.
The mud is located at a high position surrounded by
There is very little sticking of the mud to the hands even when the shift lever is operated to adjust the amount of fertilization in a deep field. Also, the shift lever 4
When the members 5 and 46 are operated, the connecting member 2c does not become a hindrance and can be easily operated from between the connecting members 2c.

[0013]

According to the present invention, in a riding agricultural machine provided with a driver's seat on an airframe having a traveling device, the airframe is constructed by connecting an upper frame 2 and a lower frame 3 to each other. The rear portion is connected to the lower frame 3 by a connecting member 2c that is curved and protruded upward, and the connecting member 2c
Transmission 3 for the working machine inside the portion surrounded by the curved portion
8 and a transmission lever 45,
Since the position 46 is located, the speed change lever can be easily operated from the outside of the connecting member 2c without obstructing it, and the speed change device 38 can be arranged at a high position so that it can be used when working in Fukada. Also, it is possible to reduce the adhesion of mud to the shift lever. In addition, the lower frame 3 is formed by the connecting member 2c which is formed by projecting the rear portion of the upper frame 2 upwardly.
Can be connected firmly.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing a riding fertilizer rice transplanter.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of a main frame.

FIG. 4 is a side view of the same.

FIG. 5 is a side view of the pump and its transmission.

FIG. 6 is a front view of the transmission.

FIG. 7 is a front view of the same pump.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main frame 2 Upper frame 2a Upper vertical frame 3 Lower frame 3a Lower vertical frame 3c Connecting member 5 Transmission case mounting plate 8 Horizontal pipe 10 Transmission case 21 Planting device 22 Fertilization tube 25 Liquid feed pump 30 Pump drive shaft 38 Transmission device 45 Main shift lever 46 Secondary shift lever 58 Fertilizer tank 61 Indicator

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A01C 11/02 A01B 51/02

Claims (1)

(57) [Claims] In a riding agricultural machine having a driver's seat provided on a body having a traveling device, the body is configured by interconnecting an upper frame and a lower frame, and a rear portion of the upper frame is moved upward to the lower frame. Coupling by a curved projecting connecting member, a transmission for the working machine is disposed inside a portion surrounded by the curved portion of the connecting member, and a transmission lever is positioned outside the transmission. Work machine transmission for riding agricultural machine.