JPH0316401Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention supports rotary shafts at the front and rear of the machine frame on which the engine is mounted, and the rotors attached to each of these rotary shafts are rotated by the engine in mutually opposite directions. Equipped with a two-shaft rotor that allows the direction of movement of the vehicle body to be easily changed by floating and holding one of the rotors above the ground, without turning the vehicle body itself, during work such as inter-tilling weeding and soil crushing. It is related to agricultural machinery.

[Conventional technology]

Conventionally, when weeding or crushing soil in a field using an agricultural machine with an engine, such as a weeding machine or a soil crusher, the direction of movement of the machine has been changed by changing the direction of the machine itself through manual operation by the worker. dependent.

[Problem that the invention aims to solve] When farming in the field as described above, the repeated changes in the direction of the agricultural machine cause the worker to feel extremely troubled and fatigued both physically and mentally, especially when working in a narrow field. In the case of agricultural fields, this can quickly lead to physical and mental pain for workers, making it difficult to hope for an improvement in work efficiency.Also, when changing the direction of a farm machine, there is a risk of the vehicle body tipping or, in severe cases, falling. As a result, it takes workers a lot of effort and time to restore the normal state from a tilted or overturned state, and especially in the case of large agricultural machines, it is extremely difficult to change the direction itself, and it can cause damage to the field. Moreover, when changing direction, there is a concern that workers may suffer unexpected injuries due to the vehicle body tipping or falling.

This idea was devised in view of the problems faced by the conventional technology mentioned above, and its purpose is to
The direction of movement of the car body during agricultural work can be determined by lifting and holding one of the rotors attached to the front and rear of the car body from the ground, without having to change the car body manually by the operator. It is an object of the present invention to provide an agricultural machine with a two-shaft rotor that can be easily converted.

[Means to solve the problem]

In order to achieve the above object, the agricultural machine with a two-shaft rotor according to the present invention has a handle attached to a holder fixed and erected at the rear of the machine frame, and a handle attached to a holder in front of and behind the engine mounted approximately in the center of the machine frame. Rotors with the same diameter are installed below the machine frame, chain wheels coaxial with each of these rotors have the same diameter, and one of the chain wheels is internally engaged with the power transmission element driven by the engine. One frame and the other are externally suspended, and the traveling direction of the machine frame can be changed by lifting or holding either one of the rotors above the ground.

[Effect]

This invention has the above-mentioned configuration, so when the rotors are rotated by the engine through the power transmitter, each rotor simultaneously rotates in opposite directions. By lifting and holding the machine from the ground, the machine frame can move forward and perform agricultural work such as weeding and crushing soil. After traveling a predetermined distance and reaching the end of the field, for example, the handle that has been lifted up until now is lowered and pressed against the ground, causing the rotor at the front of the machine frame to rise above the ground and hold it. The machine frame can be moved backward by rotating in the opposite direction to the front. At this time, the operator can change the direction of movement of the machine frame simply by lifting or pressing the handle, and there is no need for the operator to manually change the direction of the machine frame itself.

〔Example〕

Examples will be described with reference to the drawings.

While the pulley a is fixed to the power take-off shaft 1 of the engine E mounted approximately in the center of the upper surface of the machine frame F of an appropriate form, the pulley a is attached to the rear of the machine frame F (the left side is the front and the right side is the rear in the drawing). A handle h is integrally attached to the rear end surface of the holding body 2 that is fixed and erected, and a pulley b is attached to a support shaft 3 that is rotatably suspended horizontally in the middle of this holding body 2, and the pulley b and the above-mentioned A power transmitter 4, such as a belt (a chain is also possible), is connected to the pulley a.
are tensioned and suspended, and rotating shafts d and r are rotatably supported below the machine frame F and before and after the engine E, and chain wheels 5 and 5 of the same diameter are attached to the rotating shafts d and r, respectively.
6 (a groove wheel may be used) and rotors 7 and 8, which have a larger diameter than the chain wheels 5 and 6 and have the same diameter, are set in parallel.

In addition, a chain wheel 9 (a groove wheel may be used) installed on the support shaft 3 coaxially with the pulley b, and an endless power transmitter C such as a chain (a belt may be used) extending between the chain wheels 5 and 6. Tension and hang, to this power transmitter C,
As shown in the figure, by suspending the chain wheel 5 under the inscribed state and suspending the chain wheel 6 under the circumscribed state,
The rotors 7 and 8 are rotatable in mutually opposite directions,
For example, when the rotor 8 is raised from the ground g by slightly lifting the handle h, the machine frame F can be advanced by rotating the rotor 7 counterclockwise, and on the other hand, by pushing down the handle h toward the ground g, the rotor 7 on the ground
When the machine frame F is lifted from the ground, the machine frame F can be moved backward by rotating the rotor 8 in a clockwise direction. Incidentally, when a member such as a protective plate (not shown) is suspended from the rear end of the machine frame F behind the rotor 8, unexpected injury when the machine frame F is retreated can be avoided. In the figure, 10
is the guide wheel and T is the fuel tank.

〔effect〕

This invention has the following effects due to the above-described configuration.

When carrying out agricultural work in fields, the operator can easily and quickly change the direction of movement of the machine frame by lifting or pushing down the handle to lift and hold the rotor at the rear or front of the machine frame above the ground.
When changing the direction of movement of the machine frame, as in the past, the complication and labor required by the operator to turn the machine frame itself can be eliminated, and the risk of the machine frame tipping or falling when changing the direction of movement can be eliminated. There are no leaks, so workers can work safely without suffering unexpected injuries, and chain wheels of the same diameter are hung on the power transmitter, both internally and externally. The rotors of the same diameter rotate counterclockwise at the same time and provide the same driving force, so the machine frame can be stopped even if the operator takes his hand off the handle, and one rotor can be lifted off the ground. At the very least, the transfer speed of the machine frame can be adjusted by varying the load distributed to the rotor by operating the handle, and the overall configuration is extremely simple, making it robust and inexpensive to manufacture and widely available to general users. It has practical benefits such as being able to do so.

[Brief explanation of drawings]

The drawing is a side view of one embodiment of this invention. C...Power transmission element, E...Engine, F...Machine frame, g...Ground, h...Handle, 2...Holding body, 5, 6...Chain wheel, 7, 8...Rotor.

Claims (1)

[Scope of utility model registration request] While the handle h is attached to the holder 2 fixed and erected at the rear of the machine frame F, rotors 7 and 8 of the same diameter are installed in front and behind the engine E mounted approximately in the center of the machine frame F and below the machine frame F. The chain wheels 5 and 6 coaxial with the rotors 7 and 8 have the same diameter, respectively.
One of the chain wheels 5 and 6 is internally suspended from the power transmission element C driven by the engine E, and the other is externally suspended, so that one of the rotors 7 and 8 is suspended from the ground g. An agricultural machine with a two-shaft rotor that can change the direction of movement of the machine frame F by floating and holding.