JP2572333Y2 - Walking type field work machine with fertilizer application function - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to, those related to the walk-field working machine equipped with the fertilization function as such as fertilizer rice planting machine.

[0002]

2. Description of the Related Art
Some field working machines having a fertilizer application function transmit engine power to a drive case disposed at the rear of the machine body, and transmit the transmitted power to a fertilizer application mechanism including a fertilizer pump, a pump transmission mechanism, and other Some are configured to be distributed to a field work mechanism. However, in the past, since power to the fertilizer application mechanism was taken out from the power distribution means housed in the drive case, an intervening member such as a counter gear was inevitably required to take out the power. counter thickness necessary to provide the gear case or the like for supporting the gear shaft and the counter gear shaft, as a result, be complicated and an increase in the structure of the parts roux
In addition, there is a problem that the drive case becomes large . In addition, the fertilizer pump has to perform piping such as hoses and pipes together with transmission of engine power. In this case, if these interfere with each other, there is a problem in that maintenance is lacking.

[0003]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and aims to provide a walking-type field working machine having a fertilizing function capable of eliminating these disadvantages. At the front of the aircraft, the engine
And the field work mechanism and drive case at the rear.
And placed inside the drive case, the engine power is
From the left and right ends of the transmitted counter shaft,
A walk-type field working machine configured to transmit power to the
When installing a fertilizer application mechanism on the field work machine,
The fertilizer pump, which constitutes the fertilizer working mechanism, is
When installed above the power transmission path to the
The fertilizer is drawn forward from the other end of the counter shaft.
Fertilizer application via a transmission mechanism extending to the outside of the other end of the pump
The pump and the counter shaft are interlockingly connected .

According to the present invention, the number of parts can be reduced and the structure can be simplified with this structure.

[0005]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a walking type fertilizer rice transplanter. The fertilizer rice transplanter 1 includes an engine 2 and a transmission case 3 disposed at the front of the fuselage, and a planting work section 4 disposed at the rear of the fuselage. A main float 5 disposed on the bottom of the fuselage, wheels 6 disposed on the left and right sides of the fuselage, and the like. Controlling the body height by moving the wheels 6 up and down via the swing case 9 is the same as in the conventional case.

Reference numeral 10 denotes a drive case disposed at the rear of the machine body.
The engine power is input from the transmission case 3 to the planting drive shaft 15 via the chain 12 inside, and the input power is transmitted to the planting transmission shaft 14 in the sub-case 13 provided integrally with the upper end of the drive case 10. And a transmission 16 disposed in front of the sub-case 13 while transmitting to the planting drive shaft 15 for driving another planting claw mechanism via the
The power is transmitted to the fertilizer pump 17 via a counter shaft 18. The power distribution is performed on a counter shaft 18 disposed at the upper end of the drive case 10. That is, the left and right ends of the counter shaft 18 protrude from the left and right side surfaces of the drive case 10, and the protruding one end is connected to the planting transmission shaft 14 immediately above, and the other end is connected to the input shaft 16 a of the transmission 16. 20 and are directly linked. It is conventional that the engine power reaches the counter shaft 18 via the main clutch, the transmission, the planting clutch and the like.

On the other hand, reference numeral 21 denotes a base for mounting the transmission 16 and the fertilizer application pump 17. The base 21 has a front end integrated with an upper end of the transmission case 3 via a stay 22 and a bracket 23. While the rear end is integrally connected to the upper end of the drive case 10. That is, in the fertilized rice transplanter 1 of the embodiment in which the body frame is constituted by the transmission case 3, the transmission case 11, and the drive case 10, the body frame is formed into a loop by providing the base 21 as described above. It has a strong structure.

By the way, the fertilizing pump 17 is provided with two parts so that parts can be shared between different models having different numbers of fertilizing strips.
Pump units 25 each having a plurality of screw pumps 24 are arranged side by side in a number corresponding to the number of fertilizing strips.
In the embodiment in which the fertilizer application is performed, two pump units 25 are arranged side by side. The two pump units 25 are mounted on the base 21 so as to be arranged in front and rear, and the transmission 16 is also arranged substantially linearly. I have. That is, it is easy to secure a mounting space in the fertilized rice transplanter 1 in which the vehicle height is set to be as low as possible so as to make the machine center of gravity as low as possible. When the fertilizer pump 17 is positioned at the center of the fuselage to maintain the right and left balance of the fuselage, the placement space does not overlap with the lift cylinder 7 disposed at the center of the fuselage. The fertilizer pump 17 can be juxtaposed in the space above the lift cylinder 7.

The input shaft 16a, the output shaft 16b of the transmission 16 mounted on one side of the base 21 and the pump shaft 26 of the fertilizer pump 17 all project from the other side of the base 21. As described above, the power that is drawn forward from the counter shaft 18 through the chain 20 and is input is output from the output shaft 16 b of the transmission 16 to the chain 27.
The power transmitted to one of the pump units 25 is further transmitted to the other one of the pump units 25 through the chain 28.
The power transmission mechanism is transmitted to the other pump unit 25 through the other side, and these power transmission mechanisms are all formed on the other side surface of the base 21, and further covered by covers 29 and 30. When the fertilizer pump 17 is operated by the power transmitted in this way, the fertilizer pump 17
1, the paste-like fertilizer is sucked from the fertilizer tank 32, and the sucked fertilizer is pumped through a pipe 33 to a fertilizing nozzle 34, which will be described later. In addition, a drain hose 35 connected to the fertilizer pump 17 for extracting the fertilizer remaining in the fertilizer pump 17 is also piped to one side of the base 21.

On the other hand, a total of four fertilizing nozzles 34 are provided on both left and right sides of the main float 5 and inside the left and right side floats 5a.
Although the rear end of the integrally provided guide plate 36 is rotatably supported by a bracket 37 fixed to each of the floats 5 and 5a via a bolt shaft 38, the guide plate 36 can swing vertically. A plurality of engagement holes 36a are formed in the front end of the plate 36 so as to be aligned in the swinging direction. Further, reference numeral 39 denotes a stopper plate, which is formed of a leaf spring, and whose base ends have the bolt shafts 38, 4 so as to overlap with the guide plate 36.
0, a stop pin 39a is provided at the tip end for selectively fitting into the engaging hole 36a of the guide plate 36 and restricting the fertilizing nozzle 34 from swinging at a predetermined angle. Have been. That is, if the front end of the stopper plate 39 protruding from the front end of the guide plate 36 is pressed with one hand, the stopper plate 39 is elastically deformed and the stopper pin 39a is disengaged from the engagement hole 36a, and In this state, the fertilizer application nozzle 17 can be swung to a desired angle with the other hand. In addition, the guide plate 36 includes
A long hole 36b long in the swinging direction of the fertilizing nozzle 34 is formed, and the bolt shaft 40 penetrates the long hole 36b, thereby restricting the swing range of the guide plate 35. The fertilizer application nozzle 17 is prevented from swinging to an unnecessarily large range.

Further, reference numeral 41 denotes a coupler provided at the base end of each fertilizing nozzle 17;
The coupler 41 is formed so as to be connected to the pipe 33 in a one-touch manner.
7 is bent inward from the base end of the float 5 and 5a toward the inside of the float 5 and 5a.
The connecting portion 41a on the one end side is located above the floats 5, 5a.

In the embodiment of the present invention configured as described above, the engine power input from the transmission case 3 by the drive case 10 is transmitted to the planting transmission shaft 14 for transmitting the power to the planting claw mechanism and the fertilizing pump 17. The power is distributed to and transmitted to the transmission 16 to be driven. This power distribution is performed by projecting the left and right ends of the counter shaft 18 disposed at the upper end of the drive case 10 from the left and right side surfaces of the drive case 10. The protruding end is directly linked to the planting transmission shaft 14 directly above, and the other end is directly linked to the input shaft 16a of the transmission 16 via chains 19 and 20, respectively. Accordance connexion, in the drive case 10, as in the prior art had <br/> to have use a counter gear for power take for distributing power transmission to the speed change unit 16, the counter gear shaft and, the counter gear shaft the provided <br/> without Rukoto the drive case a gear case for rotatably supporting, will be capable of performing power transmission to the transmission 16 by simply configured thien transmission mechanism outside of the drive case 10, as a result If the number of parts can be reduced, the structure can be simplified, the drive case can be downsized, and the cost can be reduced. In addition, the fertilizer pump 1
7, the power transmission to the field work mechanism is performed.
As a result, the fertilization pump 1
The outside of one end of 7 is connected to a piping space such as a hose or pipe.
Pipes and the transmission mechanism
Orderly arrangement that does not interfere with
Maintainability is improved.

[0013]

[Advantageous effects] In short, since the present invention are those having the composition described description, the engine power which is transmitted to the drive case, yet one that partitioned between field working mechanism and fertilizing working mechanism, fertilizing operations Fertilizer pons that constitute the mechanism
Is the power transmission path from the engine to the drive case
Of the power supply to the fertilizer pump.
The motion is transmitted from the counter shaft that transmits power to the field work mechanism.
As a result, the counter axis becomes the distribution axis and
Power transmission path can be shared, and the structure can be simplified.
Moreover, the transmission mechanism from the counter shaft to the fertilizer pump is
The other end, not the one end, where power is transmitted to the field work mechanism
As a result, the outer side of one end of the fertilizer pump is
Can be secured as piping space for pipes and pipes.
Pipes and transmission mechanism do not interfere with each other
Can be arranged in a distributed manner, improving maintainability.
You.

[Brief description of the drawings]

FIG. 1 is a side view of a fertilizer rice transplanter.

FIG. 2 is a side view of the fertilizer rice transplanter schematically showing the power transmission structure.

FIG. 3 is a partially cutaway rear view of the upper end of the drive case.

FIG. 4 is a plan view of a main part showing a mounting state of the fertilizer application pump.

FIG. 5 is a side view of a main part of the above.

FIG. 6 is a sectional view taken along line AA of FIG. 1;

FIG. 7 is a plan view of the float.

FIG. 8 is a side view of the fertilizer application nozzle.

FIG. 9 is a sectional view of a main part of FIG.

FIG. 10 is an enlarged plan view of a main part of the fertilizing nozzle.

FIG. 11 is a main part side view showing a conventional example of a fertilizing nozzle.

[Explanation of symbols]

 3 Transmission Case 4 Planting Work Section 7 Lift Cylinder 14 Planting Transmission Shaft 16 Transmission 17 Fertilizer Application Pump 18 Counter Shaft 19 Chain 20 Chain 21 Base 25 Pump Unit 31 Suction Hose 32 Fertilizer Tank 33 Pipe 34 Fertilization Nozzle 35 Drain Hose 36 Guide Plate 39 Stopper plate

Claims (1)

(57) [Scope of request for utility model registration] An engine is provided at a front portion of a traveling body, and a field is provided at a rear portion thereof.
Place the field work mechanism and the drive case respectively, and
The engine power transmission
Power transmission from the left and right ends of the counter shaft to the field work mechanism
A walk-behind field working machine so that
When installing the fertilizer work mechanism further,
Composed fertilizer pump from engine to drive case
Above the power transmission path leading to the
The other end of the fertilizer pump drawn forward from the other end of the
Fertilizer pump and counter through a transmission mechanism leading to the outside of the side
A walking type field working machine having a fertilizing function, which is interlocked with a shaft .