JPH09159013A - Transmission case oil supply structure for self running type agricultural machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate oil supplying work to a transmission case by connecting the lower end of an extension pipe extended upward to an oil supply hole on the upper face of the transmission case, forming an oil supply port in the upper end of the extension pipe, and closing the oil supply port by means of a freely removable oil supply plug. SOLUTION: An oil supply hole 50 is formed on the upper face of a transmission case 13, and a cylindrical connecting tool 52, in which an oil path 51 with a small diameter is formed, is screwed to the oil supply hole 50, while on the outside of the cylindrical connecting tool 52, a tube mounting part 53 is formed. In addition, the lower end of an extension pipe 54 constructed of a flexible tube is connected to the tube mounting part, 53, the extension pipe 54 is extended upward with a certain slack so that its upper end is brought close to an opening part, and in the upper end, an oil supply port. 55, which is closed by means of a freely removal oil supply plug 56, is arranged continuously. The oil supply plug 56 in the upper end of the extension pipe 54 is exposed in the vicinity of the lower face of a vehicle body cover 17 via the opening part, 61 so as to be positioned right above the transmission case 13, so that oil can be supplied downward. In this way, oil supplying work can be facilitated.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a mission case oil supply structure for a self-propelled agricultural machine.

[0002]

2. Description of the Related Art Conventionally, a mission case of a self-propelled agricultural machine such as a rice transplanter is generally arranged at a low position, and an upper part of the mission case is covered with a vehicle body cover. A hole is formed, and the oil supply hole is closed by a removable oil supply plug.

[0003]

However, the oil supply hole is opened on the upper surface or the side surface of the mission case at the low position,
Since the upper part of these is covered with the body cover,
It is very difficult to refuel the mission case,
In addition, there is a problem that the earth and sand adhering to the vicinity of the refueling hole during refueling work mix with refueling and flow into the mission case.

Further, in the one in which the vent hole is formed in the filler plug and also serves as the breather, since the position of the vent hole is low, water or earth and sand may enter the inside of the mission case.

[0005]

Therefore, in the present invention, in a self-propelled agricultural machine in which a mission case is arranged below a vehicle body cover, an oil supply hole is formed on an upper surface of the mission case, and the oil supply hole is provided above the oil supply hole. Mission case refueling of self-propelled agricultural machine characterized in that the extended lower end of the extended pipe is connected and connected, the refueling port is formed at the upper end of the extended pipe, and the refueling port is closed by a removable refueling plug. It is intended to provide structure.

Another feature is that an opening is formed above the upper end of the extension pipe of the vehicle body cover, and the opening is closed by a detachable lid.

[0007]

Embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show a riding rice transplanter A as a self-propelled agricultural machine equipped with a mission case oil supply structure according to the present invention.
And a planting part 3 connected to the rear of the traveling machine body 1 so as to be able to move up and down via a three-point link mechanism 2.

The traveling vehicle body 1 has front and rear left and right wheels 7L, 7R, 8L, 8R disposed on the front, rear, left and right sides of the body frame 4 via a front axle 5 and a rear axle 6, respectively. An engine 9 is mounted in the center of the upper surface of the unit, and a battery 10 is arranged in front of the engine 9.

At the rear of the lower surface of the vehicle body frame 4, a mission case 13 interlockingly connected to the engine 9 is hung vertically. The mission case 13 is interlockingly connected to the front axle 5 and the rear axle 6 to provide front, rear, left and right wheels. It is designed to drive 7L, 7R, 8L, 8R.

A vehicle body in which the outer periphery of the upper portion of the engine 9 is covered with a bonnet 14, a steering handle 15 is provided upright on the rear portion of the bonnet 14, and a step 16 is formed on the front portion of the upper surface of the vehicle body frame 4. A cover 17 is placed to cover the upper part of the transmission case 13 and the left and right rear wheels 8L, 8R, etc., a seat 18 is placed on the upper rear surface of the vehicle body cover 17, and a side-row fertilizer applicator is behind it. 19 is installed and the above step 16
Left and right side edges of the left and right footrests 20L, 20
R is installed vertically.

Further, the left and right sides of the front end of step 16 are
Left and right front steps 21L and 21R are formed by extending forward to the left and right outside of the bonnet 14, and left and right front steps 21L and 21R are formed.
Left and right spare seedling mounting tables 22L and 22R are erected on the outside of R, respectively.

In the figure, 23 is a main gear shift lever, 24 is a sub gear shift / planting operation lever, 25 is a planting sensitivity adjusting lever, 26 is a main clutch pedal, 27 is a brake pedal, and 28 is a lifting mechanism for the three-point link mechanism 2. It is a hydraulic cylinder for performing the operation.

The planting part 3 has a rear end portion of the three-point link mechanism 2 connected to the rear portion of the vehicle body frame 4 with a hitch bracket.
Rolling fulcrum shaft connected to the same hitch bracket 30
It is connected to the planted case 32 via 31 and the center float 33 and the left and right side floats 34L, 34R are provided below the planted case 32.
Is installed to keep the height of the planting part 3 from the planting surface constant, and a 6-row seedling placing table 35 is placed above the planting case 32 via the upper and lower rails 36, 37. The rotary case 38 is rotatably supported, and the rotary case 38 is rotatably attached to the left and right sides of the rear part of the planting case 32. When the rotary case 38 is rotated, each planting claw 39 is moved to
6 seedlings are continuously planted by taking out one seedling for one plant from the seedling mat placed on and planting it in the rice field.

In the riding rice transplanter A according to the present invention, the mission case 13 disposed inside the vehicle body cover 17 below the seat 18 is provided with a mission case oil supply structure for facilitating the oil supply to the mission case 13. There is.

That is, as shown in FIG. 3, a tubular connector having an oil supply hole 50 formed with an internal thread on the upper surface of the mission case 13 and an oil passage 51 having a small diameter formed in the oil supply hole 50.
52, and attach the tube mounting part 53 to the outside of the tubular connector 52.
And the lower end of an extension pipe 54 made of a flexible tube is connected to the tube attachment portion 53 so that the extension pipe 54 has a slack and extends upward so that the upper end is close to an opening 61 described later. Then, an oil supply port 55 is continuously provided at the upper end of the same, and the oil supply port 55 is closed by a removable oil supply plug 56.

The oil filler plug 56 has a vent hole with a very small diameter in the center of the upper surface.
At the top of the oil filler plug body 56b that forms 56a, cap 56c
Is formed by crowning, a male screw is formed on the outer peripheral surface of the lower portion of the filler cap body 56b, and is screwed into the filler port 55,
The inside of the fuel filler 55 is communicated with the outside air via a labyrinth 56d formed by the upper surface of the filler cap body 56b and the inner surface of the cap 56c.

In the figure, numeral 57 is a fastening tool for ensuring the communication connection between the extension pipe 54 and the tubular connector 52 and the oil filler plug 56.

The front end of the lower surface of the seat 18 is fixed to the vehicle body cover 17
Is pivotally attached to the upper surface of the vehicle so as to be tiltable back and forth via a horizontal axis 60, and an opening is provided at a position below the seat 18 of the vehicle body cover 17.
61 is formed, the opening 61 is closed by a plate-shaped lid 62, and the lid 62 is detachably fixed via a wing nut 63 and a bolt 64.

With this configuration, when the mission case 13 is refueled, the seat 18 is tilted forward so as to be separated from the opening 61 on the upper surface of the vehicle body cover 17, the wing nut 63 is removed, and the lid 62 is removed. , Extension pipe 54 Top end oil filler 56
However, it is exposed near the lower surface of the vehicle body cover 17 through the opening 61.

As described above, since the oil filler plug 56 is exposed to the outside and the oil filler plug 56 is located immediately above the mission case 13, it is possible to refuel downward, so that the mission case 13 can be easily fed. Can perform refueling work. Further, since there is a large drop from the refueling port 55 to the mission case 13, the time required for refueling can be shortened.

Further, since the extension pipe 54 has slack, the refueling plug 56 can be pulled out to above the vehicle body cover 17 through the opening 61, so that the refueling work can be further facilitated. .

Further, a vent hole 56a can be formed in the oil filler plug 56 so as to also serve as a breather. In this case, a small diameter oil passage 51 formed on the inner surface of the tubular connector 52 allows the inside of the mission case 13 to be closed. Since it prevents the oil splashes generated in the above from flowing upwards, the extension pipe 54 and the vent hole 56a
The oil is prevented from seeping through to the outside.

[0024]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, in a riding rice transplanter in which a mission case is arranged below a vehicle body cover, an oil supply hole is formed on an upper surface of the mission case, and an extension pipe extending upward in the oil supply hole is provided. The lower end is connected continuously,
By forming the oil supply port at the upper end of the extension pipe and closing the oil supply port with the removable oil supply plug, it is possible to refuel downward and facilitate the fueling work.
Since the difference between the fuel filler and the mission case is large,
Since oil can be rapidly made to flow into the mission case, refueling can be performed in a short time.

Further, since the fuel filling port is located at a high position, the earth and sand do not adhere to the periphery of the fuel filling port, and it is possible to prevent the soil and sand from mixing into the mission case during refueling.

Further, even when the vent hole is formed in the oil filler plug to serve also as the breather, since the oil filler plug is at the high position, it is possible to prevent water or earth and sand from entering the mission case.

According to the second aspect of the present invention, an opening is formed above the upper end of the extension pipe of the vehicle body cover,
By closing the opening with a detachable lid, if you remove the lid, you can expose the refueling port to the outside of the vehicle body cover through the opening, making it easier to refuel the mission case. Can be

[Brief description of the drawings]

FIG. 1 is a side view of a riding rice transplanter equipped with an oil supply structure for a mission case according to the present invention.

FIG. 2 is a plan view of the same rice transplanter.

FIG. 3 is a side view of a partial cross-section of the oil supply structure.

[Explanation of symbols]

 A Passenger rice transplanter 13 Mission case 17 Body cover 50 Oil supply hole 54 Extension pipe 55 Oil supply port 56 Oil supply plug 61 Opening 62 Lid

Claims (2)

[Claims] 1. The transmission case (13) covers the vehicle body cover (17).
In a self-propelled agricultural machine installed below the oil supply hole (50) formed on the upper surface of the mission case (13), the lower end of the extension pipe (54) extending upward is communicated with the oil supply hole (50). A self-propelled agricultural machine characterized in that the extension pipe (54) is connected to form an oil supply port (55) at the upper end of the extension pipe (54), and the oil supply port (55) is closed by a removable oil supply plug (56). Mission case refueling structure. 2. An opening (61) is formed above the upper end of the extension pipe (54) of the vehicle body cover (17), and the opening (61) is closed by a removable lid (62). Claim 1 characterized by the above-mentioned.
The mission case refueling structure of the self-propelled agricultural machine described.