JP2010279342A - Multi-purpose small electromotive tractor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multi-purpose small electromotive tractor capable of mechanizing almost all upland farming agricultural works and operable in the closed space, and to provide unitized small agricultural equipment. <P>SOLUTION: There is provided a multi-purpose small electromotive tractor 1 having a loading platform 8 for mounting baggages and each agricultural equipment unit, wherein a robot arm 10 is provided on a body frame 2 for loading the loading platform 8. A pair of driving front wheels 3a and 3b, a pair of front wheel driving motors 4a and 4b, a pair of freely rotating rear wheels 9a and 9b are prepared and a winch wire winding drum 11 and a drum driving motor 12 are provided on the body frame 2. The loading platform 8 carries small agricultural equipment units and is made vertically movable with a loading platform height adjusting motor 5. The robot arm 10 is 360° rotatable and has joints at three positions, the carpus is 360° rotatable and can nip an article. The carpus can be removed and can be changed with another agricultural equipment. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a multipurpose small electric tractor and a small agricultural implement.

Most of the tractors used for agriculture are mostly tractors that are driven by a driver on a vehicle body that uses fossil fuel such as a diesel engine as a power source. . In some cases, tractors equipped with electric motors are provided instead of fossil fuel engines. (For example, see Patent Document 2)
There are also some electric farm tractors equipped with fuel cells. (For example, see Patent Document 1)

JP 2002-225577 JP2003-136970

In a tractor with an engine using fossil fuel, it was difficult to use it in a sealed space such as a greenhouse due to the problem of exhaust gas. In addition, the structure of the engine is complicated and the manufacturing cost is high, which is not suitable for small-scale agriculture. In some machines where the power source that has been introduced is replaced with an electric motor, the body is the same weight as a conventional tractor and is heavy, and high power is required to connect and pull conventional agricultural machinery. Therefore, there is a problem that the cost is high and the battery weight is increased.

The present invention has been devised with the aim of overcoming such problems and providing a small electric tractor and a small agricultural equipment unit that can be used for various purposes at a low cost suitable for small-scale field farming.

In order to achieve the above object, a multipurpose small electric tractor according to the present invention has a loading platform on which a load and a small farm equipment unit are placed, and a robot arm is provided on a body frame on which the loading platform is placed. It has a pair of driving front wheels, a pair of front wheel driving motors, and a pair of free rotating rear wheels, and has a winch wire take-up drum mounted on the body frame and a motor for driving the drums. The loading platform can be moved up and down by a height adjustment motor. The robot arm can be rotated 360 degrees, joints are provided at three positions, and the wrist can be rotated 360 degrees to sandwich an object. The electronic circuit includes a pair of batteries 13a and 13b, a wireless remote control receiver, and a controller.

The present inventor is that the current agricultural tractor uses a fossil fuel engine as a power source, Japan has many small-scale farmers, and the farmland has undulations, and it is difficult to introduce large-scale farm equipment. In view of the aging of the environment, the present invention was completed with the aim of reducing labor by developing a low-cost agricultural machine that can work for a long time in a greenhouse in consideration of the environment, and using a robot. .

The multi-purpose small electric tractor of the present invention is operated with a wireless remote controller or a wire remote controller for running, operation of a robot arm, and operation of a small farm equipment unit, and it is possible to perform efficient field farming by minimizing the labor of farmers. is there. It can be used for multiple purposes by changing the unitized small farm equipment. It is also possible to develop various farm equipment such as seedling planting, mowing and lawn mowing machines at low cost.

The robot arm provided in the multi-purpose small electric tractor of the present invention can be used as auxiliary labor for harvesting crops in addition to attaching and detaching the small farm equipment unit, the wrist part is removable, and another type of farm tool is used. It has a structure that can be replaced. In addition, the winch wire built into the arm has a structure that can be used for a variety of purposes other than farming.

A battery used as a power source uses a battery mounted on a general-purpose automobile, charging can be handled by household power, and running power can be reduced by using nighttime power.

According to the present invention, it is possible to provide a multipurpose small electric tractor and a small agricultural equipment unit that are inexpensive and suitable for small-scale field farming, can be used for a long time even in a sealed space, and can be used in various ways.

1 is an external view of a multipurpose small electric tractor according to an embodiment of the present invention. It is an external view of a cultivator unit. It is an external view of a flooring machine unit. It is an external view of a manure spreader unit. It is an external view of a seed seeder unit. It is an external view of a water spreader unit.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a multipurpose small electric tractor according to an embodiment of the present invention.
A multi-purpose small electric tractor 1 according to an embodiment of the present invention includes a body frame 2, a robot arm 10, a cargo bed 8, a pair of driving front wheels 3a and 3b, a pair of front wheel driving motors 4a and 4b, and a free-wheeling rear wheel. 9a, 9b, loading platform height adjusting motor 5, a pair of connecting plates 7a, 7b, winch wire winding drum 11, drum driving motor 12, a pair of batteries 13a, 13b, a wireless remote control receiving unit and a control unit. Including an electronic circuit (not shown).

The multipurpose small electric tractor 1 can travel back and forth, and can turn left or right by operating the pair of front wheel drive motors 4a and 4b independently. All operations including running are controlled by a remote control (not shown) at hand.

The loading platform 8 has a structure that can move up and down in order to adjust the height of each small agricultural equipment unit from the ground. In addition, by attaching a folding floor (not shown), it has a structure that can also be used as a cargo truck.

The robot arm 10 has a structure in which joints are provided at three locations and the entire arm can rotate 360 degrees. The wrist part has a structure capable of rotating 360 degrees independently. Moreover, the wrist part is removable, and it has a structure in which different types of farm tools (not shown) can be replaced. The arm has a winch wire and can be pulled out from the palm.

FIG. 2 shows a cultivator unit according to an embodiment of the present invention.
The cultivator unit 100 has a blade mounting base 101, a blade unit 102, a pair of blade driving belts 103a and 103b, and a pair of drive motors 104a and 104b, and is fixed on the loading platform 8 of the multipurpose small tractor 1. Used. The pair of drive motors 104a and 104b are connected to and controlled by an electronic circuit (not shown) provided in the multipurpose small electric tractor 1. The height of the blade unit 102 from the ground is adjusted by moving the height of the loading platform 8 of the multipurpose small electric tractor 1 up and down.

FIG. 3 shows a bedrock machine unit according to the embodiment of the present invention.
The dredging machine unit 200 has dredging width adjusting plates 201a and 201b, dredging machine mounting bases 204a and 204b, a pair of drive motors 202a and 202b, and a pair of embankment screws 203a and 203b. The electric tractor 1 is used by being fixed on the loading platform 8 of the electric tractor 1. The pair of drive motors 202a and 202b is connected to and controlled by an electronic circuit (not shown) provided in the multipurpose small electric tractor 1.

The bed width can be adjusted by moving the bed width adjusting plates 201a and 201b. Moreover, the height from the ground of the dredging machine unit 200 is adjusted by moving the height of the loading platform 8 of the multipurpose small electric tractor 1 up and down.

FIG. 4 shows a fertilizer spreader unit according to an embodiment of the present invention.
The fertilizer spreader unit 300 includes a fertilizer container case 301, a drive motor 302, a reduction gear 303, a fertilizer feed screw 304, and a diaphragm 305, and is used by being fixed on the loading platform 8 of the multipurpose small electric tractor 1. The The drive motor 302 is connected to and controlled by an electronic circuit (not shown) provided in the multipurpose small electric tractor 1.

FIG. 5 shows a seed sowing unit according to the embodiment of the present invention.
The seed sowing unit 400 includes a main body chassis 401, a drive motor 402, a tape take-up reel A 403, a seed supply reel 404, a seed receiver 405, a frame feed drum 406, a tape take-up reel B 407, and a ground noren 408. It has a seed supply slot 409 and a perforated slot 410 and is used by being fixed on the loading platform 8 of the multipurpose small electric tractor 1. The drive motor 402 is controlled by being connected to an electronic circuit (not shown) provided in the multipurpose small electric tractor 1.

Seeds are stored in a reusable embossed tape 411 and wound on a seed supply reel 404. The seed supply reel 404 is also reusable. The depth of the hole on the bed for sowing seeds is adjusted by the height of the loading platform 8 of the multipurpose small electric tractor 1.

FIG. 6 shows a water spreader unit according to an embodiment of the present invention.
The water spreader unit 500 includes a water tank 501, an electromagnetic valve 502, a joro 503, and a water amount window 504, and is used by being fixed on the loading platform 8 of the multipurpose small electric tractor 1.

Next, the operation will be described.
As shown in FIG. 1, in the multipurpose small electric tractor 1 according to the embodiment of the present invention, a pair of driving front wheels 3a and 3b are driven by a pair of front wheel driving motors 4a and 4b via a belt or a chain. The rear wheels 9a and 9b have a free-rotating structure, and can be turned left or right by independently driving the front wheel drive motors 4a and 4b.
The height of the loading platform 8 from the ground is adjusted by the loading platform height adjusting motor 5 through a pair of loading platform height adjusting gears 6a and 6b and a pair of connecting plates 7a and 7b.

The robot arm 10 has a structure that can be rotated 360 degrees by a motor (not shown) fixed to the body frame 2. The joints provided at the three locations are driven by three motors (not shown) provided inside. The wrist is structured to be capable of rotating 360 degrees independently by a motor (not shown) provided inside. The tip of the wrist has a structure that can sandwich an object, and is driven by a motor (not shown) provided in the arm. A pressure sensor (not shown) is provided at the distal end portion to prevent damage to the sandwiched object. In addition, the wrist part is removable, and it is structured such that root vegetables can be dug up with a shovel, for example, by changing another kind of farm tool (not shown).

The wire wound around the winch wire take-up drum 11 is drawn out from the tip of the wrist of the robot arm 10 and taken up by the drum drive motor 12.

The cultivator unit 100 shown in FIG. 2 rotates the blade unit 102 by a pair of drive motors 104a and 104b via a pair of blade drive belts 103a and 103b.
Power and control signals for the drive motors 104a and 104b are supplied from an electronic circuit (not shown) of the multipurpose small electric tractor 1. The drive motors 104a and 104b are started and stopped and the cultivator unit 100 is driven by a remote controller (not shown) at hand. The height of the cultivator unit 100 from the ground is adjusted by moving the height of the loading platform 8 of the multipurpose small electric tractor 1 up and down.

The dredging machine unit 200 shown in FIG. 3 pushes up the soil with the embankment screws 203 a and 203 b rotated by the drive motors 202 a and 202 b, and prepares the surface of the dredging bed with the dredging soil presser 205. The width of the heel bed is adjusted by the bed laying machine mounting bases 204a and 204b.
The power and control signals of the dredging machine unit 200 are supplied from an electronic circuit (not shown) of the multipurpose small electric tractor 1, and the running and starting and stopping of the embankment screws 203a and 203b are performed by a remote controller (see FIG. (Not shown). The height from the ground is adjusted by moving the height of the loading platform 8 of the multipurpose small electric tractor 1 up and down.

The fertilizer spreader unit 300 shown in FIG. 4 feeds the fertilizer into the fertilizer container case 301 and then feeds the fertilizer by rotating the fertilizer feed screw 304 with the drive motor 302 and vibrates the diaphragm 305 up and down to remove the fertilizer. To improve. The amount of fertilizer is adjusted by changing the rotation of the drive motor 302. The power and control signals for the drive motor 302 are supplied from an electronic circuit (not shown) of the multipurpose small electric tractor 1. The rotation control of the drive motor 302 is operated by a remote controller (not shown) at hand.

The multipurpose small electric tractor 1 on which the seed seeder unit 400 shown in FIG. 5 is mounted temporarily stops traveling at the seed sowing position and rotates the drive motor 402 provided in the main body chassis 401. Then, a hole to put seeds on the bed is opened, and at the same time as the drilling slot 410 rises, the frame feed drum 406 is rotated to drop seeds stored in the embossed tape 411 into the seed receiver 405. The seed passes through the seed supply slot 409 and falls into the soil hole. The rotation of the drive motor 402 is temporarily stopped, the multipurpose small electric tractor 1 is moved again, and soil is applied to the hole by the earthing noren 408.

The power and control signals for the drive motor 402 are supplied from an electronic circuit (not shown) of the multipurpose small electric tractor 1. The seed sowing process is automated by microcomputer software incorporated in an electronic circuit (not shown) of the multipurpose small electric tractor 1. Starting and stopping are operated by a remote controller (not shown) at hand.

The water spreader unit 500 shown in FIG. 6 moves on the loading platform 8 of the multipurpose small electric tractor 1. The electromagnetic valve 502 connected to the electronic circuit (not shown) of the multipurpose small electric tractor 1 is operated with a remote controller (not shown).

DESCRIPTION OF SYMBOLS 1 Multipurpose small electric tractor 302 Drive motor 2 Body frame 303 Reduction gear 3 Drive front wheel 304 Fertilizer feed screw 4 Front wheel drive motor 305 Diaphragm 5 Loading bed height adjustment motor 400 Seeding machine unit 6 Loading bed height adjustment gear 401 Main body chassis 7 Connecting plate 402 Drive motor 8 Loading platform 403 Tape take-up reel A
9 Rear wheel 404 seed supply reel 10 robot arm 405 seed receiver 11 winch wire take-up drum 406 frame feed drum 12 drum drive motor 407 tape take-up reel B
13 Batteries 408 Earthen Noren 100 Cultivator unit 409 Seed supply slot 101 Blade mounting base 410 Hole slot 102 Blade blade unit 411 Embossed tape 103 Blade driving belt 500 Water spreader unit 104 Drive motor 501 Water tank 200 Bed making machine unit 502 Solenoid valve 201 Bed width adjusting plate 503 Jolo 202 Drive motor 504 Water volume window 203 Filling screw 204 Dredging machine mount 205 Filling presser 300 Fertilizer spreader unit 301 Fertilizer case

Claims (4)

There is a loading platform on which a load and a small farm equipment unit are placed, and a robot arm is provided on a body frame on which the loading platform is placed. It has a pair of driving front wheels, a pair of front wheel driving motors, and a pair of free rotating rear wheels, and has a winch wire take-up drum mounted on the body frame and a motor for driving the drums. The loading platform can be moved up and down by a height adjustment motor. A multi-purpose small electric tractor comprising an electronic circuit including a pair of batteries, a wireless remote control receiver, and a controller. The multipurpose small electric tractor according to claim 1 does not have a part on which a person is boarded, and has a structure such that traveling, operation of a robot arm, and operation of a small agricultural equipment unit are operated by a wireless remote controller or a wire remote controller. It is characterized by having. The unitized small farm equipment that is mounted on the loading platform of the multipurpose small electric tractor according to claim 1 and used in a fixed manner does not have traveling wheels but has a single motor driving device. The driving device is connected to and controlled by a control unit of a multipurpose small tractor. The robot arm according to claim 1 can be rotated 360 degrees and has joints at three positions, and the wrist can be independently rotated 360 degrees so as to sandwich an object. A pressure sensor is provided at the tip to prevent damage to the sandwiched object. In addition, the wrist part is removable, and it has a structure that allows you to replace different types of farm tools. A winch wire is provided inside the arm.

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