JPS5937429Y2 - Agricultural vehicle running device - Google Patents

Description

[Detailed description of the invention] The present invention relates to an agricultural vehicle that travels along tobacco cultivation ridges or tea cultivation ridges, for example, while straddling the ridges, and performs elevated work such as seedling planting, intercultivation, and harvesting. .

Conventionally, for example, US Pat. Nos. 3,057,426 and 38
As shown in the publications of No. 27528, there are working vehicles such as forklift cars that have an electric or hydraulic motor installed in the axle case, and the running wheels are independently driven by the motor. Since the motor is mounted to the axle case at a lower position than the frame, the axle case support structure for the single frame becomes simpler.
It was limited to driving on extremely flat roads, and could not be easily used for agricultural vehicles that had to straddle the ridges where crops were grown.

The object of the present invention is therefore to provide an agricultural vehicle that straddles ridges, which stabilizes the body frame supported at a high position, and which can easily run in the grooves formed between the ridges. By arranging the engine and the driver's cab on the left and right sides of the machine, a sufficient space can be formed below the body frame for passing the ridges, and at the same time, the center of gravity of the body frame can be easily lowered; By attaching the running wheels below the ends of the front and rear single frames, it is possible to easily adjust the tread of the running wheels according to the ridge width, improve the stability of the vehicle body frame support by the running wheels, and improve the stability of the vehicle body frame support by the running wheels. By attaching a hydraulic motor to the rear side of the upper end, it is possible to prevent the motor from colliding with ridges, etc., and the crops that come into contact with the motor are pushed back toward the inside of the machine by the axle case on the front side. In addition, it is an object of the present invention to provide a traveling device for an agricultural vehicle in which the hydraulic piping and the like can be safely connected and held to the motor.

An embodiment of the present invention will be described below in detail with reference to the drawings.

Fig. 1 is an overall side view, Fig. 2 is a plan view of the same, and Fig. 3 is a front view of the same. Rotating fulcrum pins 5 and 6 which swingably attach the front end of the integrally formed body body frame 4 to the front body frame 1 are U-shaped fixing bolts 7 and 8 attached to both ends of the front and rear body frames 1 and 2.・・・
front and rear axle frames, which are removably slidably attached through the
and 10 (" front and rear axle cases that are rotatably supported upright on the frames 5 and 6; 11 and 12 are front and rear running wheels that are mounted on the axles on the cases 9 and 10; and 13 is fixed to the left front axle frame 5. 16 is a driver's cab fixed to the right front axle frame 5 and equipped with a driver's seat 17 and a steering wheel 18; 19 and 20;
21 is a fuel and hydraulic oil tank placed on the middle upper surface of the single frame 1; 21 is a PTO hydraulic coupler that outputs hydraulic driving force to various working machines attached to the rear single frame 2;
2... are hydraulic motors that are incorporated into the left and right front and rear axle cases 9 and 10, respectively, and independently drive the left and right front and rear running wheels 1L12, and various working machines are attached to each of the frames 2 and 4.

Then, the middle of the front and rear body frames 1 and 2, which are suspended horizontally on the left and right sides of the aircraft, is connected by a body frame 4, and the engine 14
The driver's cab 16 is distributed to the left and right sides of the aircraft and placed on the outside of the single body frame 4, while the axle case is attached via the axle frames 5 and 6 so as to be movable left and right at the ends of the front and rear body frames 1 and 2. 9 and 10 extend below the vehicle body frames 1 and 2, and a hydraulic motor 22 for driving the vehicle is attached to the rear side surface of the upper end side of the axle case 9, 10 which pivotally supports the running wheels 11, 12.

Further, FIG. 4 is an enlarged sectional view of the main part, and FIG. 5 is a plan view of the same. an input case 24 incorporating the
The lower case 26 supports the axle 25.

Then, the bearing tube 27 is integrally fixed to the axle frames 5 and 6, and the upper case 23, which is a part of the axle cases 9 and 10, is rotatably supported on the tube 27 via the collars 28 and 29 and the bearing 30. At the same time, the upper end of the input case 24 is connected to the lower end of the case 23 via the bolt 31, and the lower case 2 is connected to the lower end of the case 24 via the bolt 32.
6 Connect and fix the upper ends.

Further, a motor main body 22a, which is a movable part of the hydraulic motor 22, is covered with a motor cover 33, and the cover 3
3 is fixed to the input case 24, and the motor 2
The hydraulic input shaft 22b, which is the fixing part of No. 2, is fixed to the cover 33.

An input shaft 34 coupled to the motor main body 22a is mounted on the case 24, and an intermediate shaft 35 is mounted on each case 24.26, and a bevel gear 36.
Each shaft 34,35 is interlocked via 37.

A final pinion gear 38 formed on the intermediate shaft 35
The shafts 25 and 35 are connected via a final gear 39 that engages and supports the axle 25, and a brake drum 40 that engages and supports the axle 25.
The wheel plate 41 of
By rotating 90 degrees, the running wheels 11 and 12 are formed to be able to change direction.

As described above, the left and right front and rear running wheels 1 are connected to the front and rear body frames 1 and 2 through the front and rear axle cases 9, 9 and 10, 10.
If wheels 1, 11 and 12, 12 are independently suspended, each running wheel 11. Hydraulic motors 22 for driving if and 12, 12 respectively are connected to each axle case 9,
, 10, respectively, and each axle case 9, 10 is individually unitized.As shown in Fig. 5, the axle case 9,
Running wheels 11.1 with the cases 9 and 10 centered around 10.
2 can be rotated by 45 degrees or 90 degrees, and in addition to the normal steering operation using the handle 18, the running wheels 11 and 12 can be turned around by 45 degrees as shown in FIG. Position the running wheels lL12, and move the left and right running wheels 11,
12 can be rotated forward and reverse to make a pivot turn, and the direction can be changed in any direction at approximately the same location.
The vehicle can change direction by 0 degrees, position the running wheels 11 and 12 sideways, and travel in the left-right direction.

In addition, as shown in FIG. 4, a bevel gear 3 which is a reduction mechanism
Although the hydraulic motor 22 is interlocked and connected to the running wheels 11 and 12 through the chain 6.37, the speed reduction mechanism may be constructed of a chain and a sprocket. It is also easy to transmit deceleration to the vehicle.

As shown in the above embodiments, the present invention connects the intermediate parts of the front and rear body frames 1 and 2, which are horizontally hung on the left and right sides of the body, by the body body frame 4, and distributes the engine 14 and the driver's cab 16 to the left and right sides of the body. The axle cases 9 and 10 are disposed on the outside of the frame 14 respectively, and the axle cases 9 and 10 are movable from side to side at the ends of the front and rear body frames 1 and 2 via the axle frames 5 and 6 below the body frames 1 and 2. A hydraulic motor 22 for traveling drive is attached to the rear side of the upper end side of the axle cases 9 and 10 which extend and pivotally support the running wheels 11 and 12, and the engine/engine 14 and the driver's cab 16 are connected to the machine body. By arranging them on the left and right sides, a sufficient space can be formed below the body single frame 4 for the ridges to pass through, and at the same time, the center of gravity of the single frames 1 and 2.4 can be easily lowered. Running wheels 11.1 are located below the ends of the vehicle body frames 1 and 2.
By attaching 2, the running wheel 11°1 can be adjusted according to the ridge width.
2 can be easily adjusted, the stability of the vehicle body frame 1, 2° 4 supported by the running wheels 11, 12 can be improved, and hydraulic By installing the motor 22, it is possible to prevent the motor 22 from colliding with ridges, tea plants, etc., and the crops that come into contact with the motor 22 can be pushed back toward the inside of the machine by the front axle case 9-10. This provides practical effects such as being able to safely connect and hold the hydraulic piping to the motor 22.

[Brief explanation of the drawing]

Fig. 1 is an overall side view showing one embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a front view of the same, Fig. 4 is an enlarged sectional view of the main part, and Fig. 5 is the main part. FIG. 1.2...Vehicle frame, 9,10...
- Axle case, 11.12 Running wheel, 22... Hydraulic motor, 36.37... Bevel gear (reduction mechanism).

Claims (1)

[Scope of utility model registration request] The middle of the front and rear body frames 1 and 2, which are horizontally hung on the left and right sides of the aircraft, is connected by a body body frame 4, and the engine 14 and the driver's cab 16 are distributed to the left and right sides and arranged on the outside of the body body frame 4, respectively. , the front and rear body frames 1 and 2
The axle case 9 10 extends below the vehicle body frames 1 and 2 through the axle frames 5 and 6 so as to be movable left and right at the end thereof, and the axle case 9 supports the running wheels 11 and 12.
゜10 On the upper end side, there is a hydraulic motor 2 for traveling drive on the rear side.
2. An agricultural vehicle traveling device characterized in that: 2 is attached.