JPS62137225A - Walking type power farm machine - Google Patents

Abstract

PURPOSE:To make it possible to easily move a machine on the road, by providing a lever for changing over slidable gears in a mission casing to transmit the engine side rotational power alternatively to a plowing shaft or running wheels. CONSTITUTION:In order to drive a plowing shaft 21, a lever provided to a mission casing is manipulated to transmit the rotational power of the engine 4 side to a plowing shaft 21, and therefore, the machine plows the land while it is propelled by itself. Further, in order to move on the road, the lever is shifted so that the rotational power is transmitted to running wheels 29. Then, the plowing shaft 21 is not rotated, completely, while the running wheels 29 are alone rotated. In this case the steering wheel of the power farm machine is depressed to float up the plowing shaft 21 so that the machine is steered by means of the steering wheel, and therefore, the machine is smoothly moved forward or backward, thereby it is possible to facilitate the travel of the machine.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to an axle-axle tilling type walk-behind power agricultural machine.

(b) Conventional technology Attach the engine and transmission case to the aircraft base.

There is a simple walking-type power agricultural machine that has tilling claws attached to the axle suspended horizontally at the bottom of the transmission case, and plows the soil while rotating the axle and moving on its own.

(C) Problems to be Solved by the Invention When such conventional devices move on the road, etc., the axle portion to which the claws are attached is lifted off the ground by the rolling wheels attached to the rear of the aircraft body. The vehicle is moved either forward or backward, or wheels are attached to both the left and right sides of the axle to prevent the claws from reaching the ground, and these wheels are rotated by power while moving.

For this reason, in the former configuration, when the weight of the fuselage becomes heavy, it becomes difficult to move the machine by pushing it by hand. The latter type has the disadvantage that it is cumbersome to attach and detach the wheels. .

b) Means for solving the problem This invention is proposed in view of the above problems, and includes:
The following technical measures were taken. That is, the engine (4) and the transmission case (5) are attached to the machine base (2), and the engine (4) and the transmission case (5) are interlocked and connected via a suitable transmission groove α2.

In a powered agricultural machine that has a tillage shaft mounted at the bottom of the mission case (5) so that it can rotate freely, and a movable wheel canopy behind it, there is a lever to switch the sliding gear Qf9ffi inside the mission case (5). The structure of the walking-type power agricultural machine is characterized in that the rotational power of the engine (4) is transmitted to the tilling shaft CD or the movable wheels (to) by carrying out a selective switching operation. .

(E) Effects of the Invention Since the present invention is configured as described above, it has the following technical effects. In other words, by switching the lever provided on the side of the mission case (5), the rotary power from the engine (4) is transferred to the shaft at the bottom of the mission case (5) for driving the tilling shaft @11'. It is transmitted to the tilling shaft and can till the soil while running on its own.

In addition, the lever (37) is used to move on the road after finishing the work.
If you switch the rotational power to the movable wheel and transmit the rotational power to the tilling shaft? D is not driven at all, and only the moving wheels are rotationally driven. In this case, the machine will move smoothly forward or backward as long as you push down the handle (to) of the power agricultural machine (1) to lift the tilling shaft QD part and steer it with the handle (to), and the machine will move smoothly forward or backward. It has the feature that it is easy to move without having to use it.

(f) Example The present invention will be described in detail below based on one drawing.

First, to explain the configuration, (1) is a walking type power agricultural machine, and the engine (4) is fully mounted on the base (2) of this Power Farm II (1) via the fender (3). At the rear of the machine base (2), the mission case (5) is positioned in its entire length and the machine base (2) K is attached.

Transmission of rotational power from the engine (4) side to the transmission case (5) side may be provided by fully interposing an appropriate transmission curved groove, and as in this embodiment, the output shaft (7) of the engine (4) )
A belt transmission mechanism (6) consisting of a pulley (9) αO, a belt αD, etc. is interposed between the transmission case (5) and the input shaft (8) protruding from the upper side of the transmission case (5). Good too.

A first reduction shaft α] is mounted parallel to the input shaft (8) below the input shaft (8), and a large-diameter spur gear 0 is fixed to this first reduction shaft (2), as well as a switching gear (to be described later). A spur gear (c) is fitted to allow free sliding in the axial direction. Then, input shaft (8
), the small-diameter spur gear QQ fixed to the shaft is constantly meshed with the large-diameter spur gear α fixed to the first reduction shaft (to).

By appropriately sliding and switching the switching spur gear aO in the axial direction, the further decelerated rotation is transferred to the second deceleration shaft (17
).

This second reduction shaft αη has a two-stage gear side in which a large-diameter spur gear and a bevel gear are integrated, and a large-diameter spur gear 09 on the side thereof.
and a sprocket (1) is fixed between both gears 081Q9.

A large-diameter subrocket L-H is fixed to the middle part of the tilling shaft QB, which is pivotally supported at the bottom of the mission case (6), and a chino (C) is wound between both sprocket blades. (
C) is a tilling claw attached to this tilling shaft I2D. Then, the switching spur gear αυ on the first reduction shaft Q3
When is moved in the left-right direction, this spur gear QFJ meshes with any one of the large-diameter spur gears 081Q9.

(to) is a large-diameter bevel gear that is always meshed with the bevel gear of the two-stage gear (to), and a shaft (to) that supports this bevel gear ω.
(to) is provided along the direction of travel, and is pivoted to the transmission case (5) in an inclined manner so that the rear end is located lower than the front end when viewed from the side. A vertically elongated transmission shaft (1) and an axle (2) that supports the moving wheels are supported in a state in which they are orthogonal to each other in the transmission case frame for the traveling wheels provided on the extension of this axle frame.

The bevel gear OD attached to the end of the transmission shaft (c) meshes with the large diameter bevel gear (to) on the axle (■) to transmit rotational power to the moving wheels.

The axle supported by the transmission case (5) and the transmission shaft (c) supported by the running wheel transmission case were connected via a universal jaw, India 03, and were supported at the rear of one machine (2). By appropriately rotating the height adjusting threaded rod, the transmission case frame is configured to rotate up and down while bending the universal joint (c).

The middle part of the threaded rod (■) has its rear end pivotally supported on the e-stand, and is screwed into a piece (end) with a threaded part carved in the vertical direction, and a height adjustment lever integrated with the threaded rod (■). By rotating (to), this transmission case handle moves up and down.

Note that the symbol (9) in Figure 1 is an operating lever for slidingly switching the switching gear a, and @ is a control handle.
is a resistance rod, ■ is a fuel tank installed above the engine (4), and 0]) is a muffler.

On the upper side, when performing plowing work while running this walk-behind power agricultural machine in the field, fully operate the control lever to move the switching spur gear αit to the left, and mesh this gear α0 with the large-diameter spur gear 09. .

Then, the rotational power of the engine (4) is transmitted by the belt transmission mechanism @
, input shaft (8), spur gear αQα, switching spur gear αυ
, is transmitted to the tilling shaft CD sequentially through the spur gear Q (1, Cheno (to) sprocket @ Iso structure, and rotates this tilling shaft in the normal direction (
It is possible to carry out plowing work while running on its own (down cutting).

In addition, when the tilling operation by the rotation of the tilling shaft 2n is completely stopped and the machine is to be moved, the operation lever (9) is swung sideways to move the switching spur gear αυ to the right, and this gear a and the second gear (to) and mesh together. Then, the power transmitted to the second reduction shaft α7) is transmitted to the axle (7) through the bevel gear (to), the universal joint (to), and the bevel gear 0υ (c) in order, and then to this axle (7). The aircraft can be moved forward by driving only the attached moving wheel wing. In this case, remove the resistance rod (to) from the aircraft and push down the control handle (to) to move it.

In this embodiment, the movable wheel cage can be rotated up and down and fixed at any position, so the plowing depth can be set freely! It is convenient to install two wheels behind the mission case (5) so that you can do the tilling work without having to use your hands.

In addition, a bevel gear (A) and another bevel gear (not shown) are loosely fitted on the axle (7) in opposition to this bevel gear (To), and both gears are constantly meshed with the bevel gear OD. A clutch body that rotates integrally with the axle (to) is provided between the two bevel gears, and the clutch body is operated as appropriate to transmit rotation to one of the bevel gears on the axle (7). This makes it even more convenient to be able to move the aircraft forward and backward.

[Brief explanation of drawings]

The figures show an embodiment of the invention, with FIG. 1 being a side view and FIG. 2 being a power transmission diagram. Explanation of symbols (1) Powered agricultural machine (2) Machine base (4) Engine (5) Mission case @ Belt transmission mechanism QTJ Tilling shaft Moving wheel

Claims (1)

[Claims] Engine (4) and mission case (5) on machine base (2)
Install this engine (4) and transmission case (
5) are interlocked and connected via an appropriate transmission mechanism (12), and a tilling shaft (2) is installed at the bottom of the mission case (5).
1) is rotatably mounted on a shaft, and behind it is a moving wheel (29
) (29), the rotation of the engine (4) can be controlled by selectively operating the lever (37) that switches the sliding gear (15) in the transmission case (5). A walking type power agricultural machine characterized in that it is configured to transmit power to the tilling shaft (21) or the moving wheels (29) (29).