JPH0123565Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tank device for an agricultural tractor, especially a management tractor that performs pest control, reaping, intercultivation, etc. while traveling between the rows of crops in vegetation.

Conventionally, in order to manage crops in vegetation using an agricultural tractor, a tank device was towed at the rear of the general agricultural tractor. However, when towing a tractor, the overall length of the tractor becomes longer and the area it moves around at the edge of the field becomes wider, increasing the area it can trample over the crops.

Therefore, in the present invention, a pest control tank is placed on the tractor base, that is, on the rear axle case, rear axle housing, rear wheels, etc.
The driver's seat, which was located at the top of the rear axle case in conventional agricultural tractors, is arranged side by side with the engine compartment 5 in the front.

Furthermore, since the management tractor passes over the crops in the vegetation, it must have a high ground clearance, and the lower surface of the rear axle housing through which the crop rows pass is designed to have high clearance. Due to this configuration, the rear axle case was also taller than that of a typical agricultural tractor, making it unstable if a large tank was mounted on it, and reducing the height of the tank resulted in problems such as a reduction in capacity.

In order to solve these problems, the present invention lowers the height of the top of the tank and creates skirts that hang down from both sides of the tank to compensate for the lack of tank capacity. It is a supplement. or,
A hydraulic case is provided on the top surface of the rear axle case, and a lift arm protrudes from the hydraulic case so that it can rotate freely.Therefore, it is necessary to leave a rotation space for this lift arm, so a recess is provided in the center bottom of the tank. We are dealing with it.

The purpose of the present invention is as described above, and the structure of the present invention will be explained based on the structure of the embodiment shown in the attached drawings.

Figure 1 is an overall side view of a management tractor among agricultural tractors, Figure 2 is a plan view, Figure 3 is a rear view, Figure 4 is a sectional view of the tank device, and Figure 5 is a perspective view. .

An engine compartment 5 and a driver's seat 4 are arranged side by side, and a steering handle 3 is provided in front of the driver's seat 4. A safety frame 2 is installed above a driver's seat 4 and a steering handle 3. The engine in the engine compartment 5 is fixedly supported by the transmission case 7, and the engine compartment 5 and the driver's seat 4 are connected to each other.
etc. are placed on a front frame 6 protruding from the transmission case 7. The front wheels of No. 8 are driven by the transmission case 7, can be driven by a front wheel drive clutch, and are configured to have high clearance.

For general agricultural tractors, transmission case 7
The rear axle case is fixed directly to the rear surface, but in the case of a management tractor, the rear frame 10 is installed to form a space in which the tank 1, loading platform, etc. can be placed.
Mission case 7 and rear axle case 1
It supports between 1 and 1. Rear axle case 11
Rear axle housing 14, 14 from both sides of
The central part of the protruding rear axle housing is configured to have a high clearance as a part through which the strip passes. A reduction gear box 15 is provided at the tip of the rear axle housing, and is shaped like a teardrop, with the lower part hanging vertically to ensure ground clearance. Rear wheels 9, 9 are attached to the rear axle protruding from the lower part of the reduction gear box 17.
is supported.

The tank device 1 of the present invention has a water inlet 16 on the top surface. Further, as shown in the rear view of FIG. 3, skirt portions 1f, 1f are formed to hang down from side to side, and outlet ports 1a, 1a are provided at the lower ends of the hem portions 1f, 1f. Water is sucked into the pump of the pest control machine through pipes from these outlets 1a, 1a, and sprayed over a wide area from a nozzle provided in the boom while the tractor is moving. Also, as understood from FIGS. 1 and 4, there is a recess 1c in which the hydraulic case 12 is arranged and a recess 1 as a rotation space for the lift arm 13 connected thereto.
d is provided. Naturally, the top of the rear frame 10 is also formed into a recess 1h. And left and right hem 1f
hanging from the outside of the rear wheel. A recess 1e into which the rear wheel 9 is inserted is formed within the hem 1f, and the recess 1e
The rear axle housing 14 is located at the part corresponding to the entrance of the
A recess 1g into which is inserted is provided. The volume of the tank 1 is increased by making the inside of the hem part 1f excluding these recessed parts into a cavity.

As described above, the present invention places a tank device above the rear axle case, the rear axle housing, and the rear wheel, and configures the upper part of the rear axle case of the tank to be a recess for the hydraulic hose and lift arm. The hem of the tank hangs outside the rear wheels to increase the tank capacity, so instead of making tank 1 larger upwards, the capacity is increased by hanging downwards, which improves the stability of the aircraft. Since the outside of the rear wheel is covered with the tank 1, the tank can also serve as a fender, contributing to safety, and providing high ground clearance while providing stability. This made it possible to construct a highly functional management tractor.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of a management tractor among agricultural tractors, Fig. 2 is a plan view, Fig. 3 is a rear view, and Fig. 4 is a sectional view of a tank device.
FIG. 5 is also a perspective view. 1... Tank, 7... Mission case, 10
...Rear frame, 11...Rear axle case,
15...Tank hem, 1c, 1d, 1e, 1g,
1h...Tank recess.

Claims (1)

[Scope of utility model registration request] A tank device is placed above the rear axle case, the rear axle housing, and the rear wheels, and the upper part of the rear axle case of the tank is formed into a recess for the hydraulic case and the lift arm, and the tank is placed on the outside of the rear wheels. A tank device mounted on an agricultural tractor, characterized by a hanging hem to increase tank capacity.