JPH09271310A - Self-propelled spraying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a self-propelled spraying machine having a tank, an engine, a pump and a spraying nozzle mounted on a crawler-type mobile body and capable of continuing the spray work over a long period by increasing the capacity of the tank while keeping the compactness of the machine body. SOLUTION: The height of the upper face of a mobile frame 1 having crawler-type driving gears at the right and the left is made to be lower than the top of the crawler belts 5, 5. A front tank-holding frame 6 and a rear tank- holding frame 7 are placed at the front and rear sides on the upper surface of the mobile frame. A downward protrusion 12a is formed on the bottom of a tank 12. The bottom of the tank 12 is placed by fitting the tank along the front and rear tank-holding frames 6, 7 in such a manner as to insert the downward protrusion 12a into a space encircled with the crawler belts 5, 5 and the mobile frame 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tank structure of a self-propelled sprayer having a crawler type traveling device for irrigation and control.

[0002]

2. Description of the Related Art Conventionally, a self-propelled spraying machine having a structure in which a tank for storing chemicals, water, etc., a prime mover, a pump, and a nozzle hole are mounted on a crawler-type traveling vehicle body is known. Japanese Utility Model Publication No. 59-27854 and Japanese Utility Model Publication No. 7-28376
No., for example. Among these, the tank mounting portion on the upper surface of the traveling vehicle body is flat, and the bottom surface of the tank mounted on this is also flat.

[0003]

It is desirable to make the entire machine as compact as possible in order to secure a wide spraying range and make the handling of the machine easy. On the other hand, however, it is necessary to increase the capacity of the tank in order to enable the spraying work for a long time. In order to expand the capacity of the tank, in the conventional shape of the tank, there was only means for expanding the tank in the horizontal direction or in the vertically upward direction, but this hinders the size reduction.

[0004]

The present invention uses the following means to solve the above-mentioned problems. First of all, in a self-propelled spreader in which a tank, a prime mover, a pump, and an injection hole are mounted on a crawler-type traveling vehicle body, the crawler-type traveling vehicle body is supported by supporting the crawler-type traveling device on the left and right. Make the top of the frame lower than the top of the track.

Secondly, in the self-propelled spreader having the above-mentioned structure, a portion fitted into a space surrounded by the upper surface of the traveling frame and the crawler belts on the left and right is projected from the bottom of the tank to be mounted.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a self-propelled spreader according to the present invention will be described with reference to the accompanying drawings. 1 is a front view of a self-propelled spreader of the present invention, FIG. 2 is a rear view thereof, FIG. 3 is a left side view thereof, FIG. 4 is a right side view thereof, and FIG. 5 is a plan view thereof.
Similarly, FIG. 6 is a rear view.

The structure of the crawler type vehicle body will be described, and the tank mounting structure related thereto will be described. As shown in FIG. 6, the traveling frame 1 has an idler shaft 2 from the front.
a, the wheel shafts 3a and 3a are pivotally supported, and the idler 2 and the wheel wheels 3 and 3 are suspended on the respective left and right outer sides.
A traveling mission case M is disposed behind the traveling frame 1 as shown in FIG. 2 to FIG. 4 and FIG. 6, and the drive sprocket shaft 4a is arranged to the left and right of the traveling mission case M.
・ 4a projectingly mounted to support the left and right drive sprocket shafts 4
A drive sprocket 4 is suspended on each a. A crawler (crawler track) 5 is wound around each of the idler 2, the rolling wheels 3 and 3, and the drive sprocket 4 suspended on the left and right outer sides of the traveling frame 1.

As shown in FIG. 1, the traveling frame 1 is arranged between the left and right crawlers 5 and 5 in the upper and lower intermediate portions of the crawlers 5 and 5, that is, the upper surface of the traveling frame 1 has the crawler 5 and 5. It is lower than the upper edge of. And
Each of the bottom surface portions 6 of the front tank mounting frame 6 and the rear tank mounting frame 7 is disposed in front of and behind the upper surface of the traveling frame 1.
A and 7a are fixed, and both tank mounting frames 6.7 are installed.
The upper ends of the left and right vertical plate portions 6b and 7b are bent in the outer horizontal direction (in an L shape when viewed from the front) to form horizontal plate portions 6c and 7c above the left and right crawlers 5 and 5.

The tank 12 stores a chemical solution for control and water for irrigation, and the bottom of the tank 12 is shaped to match the shapes of the two tank mounting frames 6 and 7. That is, as shown in FIG. 1 to FIG. 4 and FIG. 6, a lower protruding portion 12a is formed at the center of the left and right, and at the upper position of the crawlers 5, 5, the left and right side portions of the bottom of the tank 12 are
Placed on the horizontal plate portions 6c and 7c of the front and rear tank mounting frames 6 and 7 and fastened, the lower protruding portion 12a at the center of the left and right is
It is fitted along the vertical plate portions 6b and 7b, and the bottom surface thereof is placed on the bottom surface portions 6a and 7a. In this way, the lower protruding portion 12a is fitted into the space surrounded by the left and right crawlers 5 and the traveling frame 1, and the tank 12 expands its capacity horizontally and vertically without expanding the space. Can be realized.

From the front end of the front tank mounting frame 6,
As shown in FIGS. 1 and 3 to 6, a nozzle base 8 is provided so as to project horizontally, and a nozzle mounting shaft 9 is vertically provided above the nozzle base 8. A nozzle height adjusting tube 10 to which a nozzle is directly attached is slidably fitted on the nozzle attaching shaft 9,
The adjusting screw 11 is loosened to adjust the height of the nozzle height adjusting tube 10 on the nozzle mounting shaft 9, and when the height is determined, the adjusting screw 11 is tightened.

Next, the power portion of the rear portion of the vehicle body will be described. First, the support structure will be described. At the rear portion of the traveling frame 1, the upper surface of the traveling frame 1 is shown in FIGS.
As described above, the power unit mounting frame 13 is arranged. The traveling mission case M is disposed between the left and right side plate portions of the power unit mounting frame 13, and the traveling unit case M is covered by the power unit mounting frame 13 for protection. The upper surface of the power unit mounting frame 13 serves as a power unit mounting surface 13a, and a power unit protection frame 14 is disposed from the side edge portion to the rear edge portion thereof. The left and right front ends of the power part protection frame 14 are extended vertically upward to form vertical frame parts 14a, 14a, and the upper end parts of the vertical frame parts 14a, 14a are bent in the rearward horizontal direction to form a handle part. 14b is formed. That is, the protective frame of the power unit also serves as the handle.

The vertical frame portions 14a, 14a are disposed at the left and right corners of the rear end of the tank 12, and the left and right corners of the rear end of the tank 12 are gouged in plan view as shown in FIG. The cutouts 12b and 12c are formed to cover the front ends of the vertical frame portions 14a and 14a.
Thus, the tank 12 has the vertical frame portion 14a.
The rear end of the tank 12 is extended between the left and right vertical frame parts 14a and 14a without interfering with the 14a, that is, the space between the vertical frame parts 14a and 14a in the power part is used to expand the space of the tank 12. , This also
It contributes to the expansion of the capacity.

The cutout 12b on the right side of the tank 12
Is formed to be slightly longer than the vertical frame portion 14a included therein, and in this portion, as shown in FIG. 3, gauge pipe joints 18, 18 are vertically arranged, and the upper and lower gauge pipe joints 18 are formed. A transparent gauge tube 19 is piped between 18. The chemical liquid or water contained in the tank 12 enters the gauge pipe 19 from the bottom to reach the liquid level of the chemical liquid or water, and the chemical liquid in the tank 12 is checked by observing the liquid level in the gauge pipe 19. Alternatively, the remaining amount of water can be confirmed.

On the left and right side surfaces of the power part protection frame 14, as shown in FIGS. 3 and 4, a protection side plate 15 made of resin or the like is used.
.15 are provided, and a horizontal protection plate 16 is provided between the vertical portions 14a and 14a. Further, an upper protection plate 17 is provided on the upper handle portion 14b as shown in FIG. The upper part, the front part, and the left and right sides of the engine E and the pump P, which are power parts to be mounted on the upper surface of the power part mounting frame 13, are protected.

The structure of the power unit will be described with reference to FIG. Mounting surface 13a on the upper surface of the power unit mounting frame 13
A prime mover, that is, an engine E and a pump P are mounted on the engine. The engine E transmits the power between the engine E and the traveling mission case M therebelow by a chain transmission mechanism covered by the chain case 20 to apply a driving force to the drive sprockets 4 of the left and right crawler traveling devices. On the other hand, the power is also transmitted to the pumps P arranged in parallel via the chain transmission mechanism covered by the chain case 21. The pump P
Is for sucking the chemical liquid or water from the tank 12 by its power and discharging the chemical liquid or water toward the nozzle (injection hole) attached to the nozzle height adjusting pipe 11.

[0016]

The present invention is configured as described above in a self-propelled spreader in which a tank, a prime mover, a pump, and an injection hole are mounted on a crawler-type traveling vehicle body. It plays. That is, by setting the upper surface height of the traveling frame in the crawler-type traveling vehicle body to be lower than the upper end of the crawler belt, a space surrounded by the left and right crawler belts and the upper surface of the traveling frame can be formed. Then, as in claim 2, by providing a portion to be fitted into this space from the bottom of the tank, the compactness of the machine body is maintained without expanding the tank horizontally or vertically upwards.
The capacity can be expanded. That is, it is possible to provide a self-propelled spraying machine which is compact, has a large capacity, and can be sprayed for a long time.

[Brief description of drawings]

FIG. 1 is a front view of a self-propelled spreader of the present invention.

FIG. 2 is a rear view of the same.

FIG. 3 is a left side view of the same.

FIG. 4 is a right side view of the same.

FIG. 5 is a plan view of the same.

FIG. 6 is a rear view of the same.

[Explanation of symbols]

 1 Travel Frame 5 Crawler 6 Front Tank Mounting Frame 7 Rear Tank Mounting Frame 12 Tank 12a Lower Projection

Claims (2)

[Claims] 1. A tank, a prime mover, and
In a self-propelled spreader equipped with a pump and a nozzle hole, in the crawler-type traveling vehicle body, the upper surface of a traveling frame that supports the crawler-type traveling device on the left and right is lower than the upper end of the crawler belt. A self-propelled spreader. 2. The self-propelled spreader according to claim 1,
A self-propelled spreader, characterized in that a portion that fits into a space surrounded by the upper surface of the traveling frame and the crawler belts on the left and right is projected from the bottom portion of the tank to be mounted.