JP2013034432A - Agricultural implement - Google Patents

Abstract

【Task】
A single electric drive unit driven by a motor is used to replace a plurality of work machines to enable a plurality of work, thereby reducing costs.
[Solution]
A motor frame (1) is mounted with a motor (2) and a battery (3), and mounting means (6, 7, 8) and a handle (10) for mounting the work machine are attached to form an electric drive unit. The plurality of work machines (12, 14, 16, 18) are provided with work machine attachment means (12c, 14c, 16c, 18c) that can be attached to the attachment means (6, 7, 8) on the electric drive side. Provide. One of the plurality of work implements (12, 14, 16, 18) is selected, and the attachment means (6, 7, 8) on the electric drive unit side through the work implement attachment means (12c, 14c, 16c, 18c) ), The drive unit of the electric drive unit and the drive unit on the work machine side are in a transmission connection state, and a plurality of operations are realized using one electric drive unit.
[Selection] Figure 3

Description

  The present invention relates to an agricultural work machine.

  A rotary unit that cultivates the field, a motor that drives the rotary unit, a motor cover that covers the upper side of the motor, a battery case that stores a battery that is a power source of the motor, and a rotary cover that covers the upper side of the rotary unit. An opening is provided in the left and right center of the cover, and walls are formed along the opening to support the left and right sides of the battery case. The battery case is detachable in the vertical direction with respect to the body frame side. Such an electric power tiller is known.

JP2011-6

  The present invention intends to reduce the cost by allowing a plurality of work machines to be replaced with a single electric drive unit driven by a motor so that a plurality of work can be performed with a single electric drive unit. .

In order to solve the above problems, the present invention has taken the following technical means.
According to the first aspect of the present invention, the motor (2) and the battery (3) are mounted on the machine body frame (1), and mounting means (6, 7, 8) and a handle (10) for mounting the work machine are attached. A work implement mounting means (12c, 14c) that constitutes the electric drive section and can be attached to the plurality of work machines (12, 14, 16, 18) by the mounting means (6, 7, 8) on the electric drive section side. , 16c, 18c), and any one of the plurality of work machines (12, 14, 16, 18) is selected as the mounting means (6, 7, 8) on the electric drive unit side. When mounted via (12c, 14c, 16c, 18c), the drive means of the electric drive unit and the drive means on the work machine side are in a transmission connection state, and a plurality of operations are performed using one electric drive unit. It is characterized by.

  According to a second aspect of the present invention, in the first aspect of the present invention, in the power transmission path from the motor (2) of the electric drive unit to the work device of the work implement (12, 14, 16, 18), the speed is reduced and the torque is increased. It is characterized by providing transmission means (21, 22) for transmitting power while aiming.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, a one-way clutch (23) is interposed in the tillage power transmission path of the tillage working machine (12), and the rotary (12b) is disposed only in a predetermined direction. It is characterized by being driven to rotate and idling in the opposite direction.

  According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the lawn mower (14) includes a lawn mowing frame (14a) having lawn mowing transmission means (14g) and a front side portion. A lawn mowing blade (14b) provided, and left and right wheels (14d, 14d, 14e, 14e) located behind the lawn mowing blade 14b, the left and right wheels (14d, 14d, 14e, 14e). ) Is disposed so as to be located inside the lateral width of the lawn mowing blade (14b).

  The invention of claim 5 is the lawn mower (14) according to claim 1, claim 2 or claim 4, wherein the lawn mower (14) includes a lawn mowing frame (14a) having lawn mowing transmission means (14g) installed therein, A lawn mowing blade (14b) disposed on the front side, and left and right wheels (14d, 14d, 14e, 14e) positioned behind the lawn mowing blade 14b, the lawn mowing transmission means (14g) ) Is disposed in the center of the aircraft, and power is applied to the left and right wheels (14d, 14d) via traveling transmission means (14h) extending from the terminal side of the lawn mowing transmission means (14g) to the left and right sides. And transmitting power to the lawn mowing blade (14b) via the second lawn mowing transmission means (14i) extending from the terminal side of the lawn mowing transmission means (14g) to the left and right other sides. Features.

  According to the invention of claim 1, any one of a plurality of work machines (12, 14, 16, 18) is selected as the mounting means (6, 7, 8) on the electric drive unit side, and the work machine mounting means ( 12c, 14c, 16c, and 18c), the drive means of the electric drive unit and the drive means on the work machine side are in a transmission connection state, and a plurality of operations are quickly performed using one electric drive unit. And cost can be reduced.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, in the power transmission path from the motor (2) of the electric drive unit to the work device of the work machine (12, 14, 16, 18). Is provided with transmission means (21, 22) for transmitting power while decelerating and increasing torque, so that a high load operation can be performed while using the motor (2) as a power source.

  According to the invention of claim 3, in addition to the effect of the invention of claim 1 or claim 2, the one-way clutch (23) is interposed in the tillage power transmission path of the tillage working machine (12), and the rotary (12b) is rotationally driven only in a predetermined direction and is idled in the opposite direction. Therefore, when a foreign object such as a stone is caught in a claw portion (12f,...) Of the rotary (12b) and mechanically locked, the rotary ( The tillage transmission means (12g) without removing the claw (12f) from the rotary shaft (12e) by hitting a foreign object or the claw (12f) with a hammer along the counter drive direction of the claw (12f) of 12b) Foreign matter can be removed while preventing damage.

  According to the invention of claim 4, in addition to the effects of the invention of claim 1 or claim 2, the lawn mower (14) is positioned inside the horizontal width of the lawn mowing blade (14b). Since the left and right wheels (14d, 14d, 14e, 14e) are arranged, the left and right wheels (14d, 14d, 14e, 14e) do not step on and push down uncut turf grass, and the cutting height is made uniform. Can do.

  According to the invention of claim 5, in addition to the effect of the invention of claim 1, claim 2 or claim 4, the lawn mowing transmission means (14g) is arranged in the central part of the fuselage, and the lawn mowing transmission means ( Power is transmitted to the left and right wheels (14d, 14d) via the traveling transmission means (14h) extending from the terminal end side of 14g) to the left and right sides, and from the terminal side of the lawn mowing transmission means (14g) Since the power is transmitted to the lawn mowing blade (14b) via the second lawn mowing transmission means (14i) extending to the side, the balance between the left and right of the lawn mower (14) is improved and stable. You can drive at.

The perspective view of a body frame. A side view of an electric power tiller. The side view of the decomposition | disassembly state of an electric power tiller. The side view of an electric lawn mower. The side view of the decomposition | disassembly state of an electric lawn mower. The side view of an electric brush cutter. The side view of the decomposition | disassembly state of an electric brush cutter. The side view of an electric pump working machine. The side view of the decomposition | disassembly state of an electric pump working machine. The cutting side view of a cultivation machine. The cutting front view of a cultivation machine. The side view of an electric lawn mower. The cutting top view of an electric lawn mower.

Embodiments of the present invention will be described below with reference to the drawings.
The body frame 1 is configured in a box shape having a rectangular shape that is long in the front-rear direction in plan view and opened upward, the motor 2 is mounted on the front frame 1a of the body frame 1, and the output shaft 2a of the motor 2 is the lower end of the body frame 1 A main switch 4 and a breaker 5 are provided on the upper cover 1aa. A battery 3 is detachably mounted on the rear frame 1b of the body frame 1.

  Left and right front mounting frames 6 and 6 are provided so as to protrude downward at the front lower left and right corners of the front frame 1a of the body frame 1, and the left and right rear mounting frames 7 at the rear lower left and right corners of the rear frame 1b. , 7 are provided so as to protrude downward. Further, an intermediate mounting frame 8 is provided at a boundary portion between the front frame 1a and the rear frame 1b of the machine body frame 1 so as to protrude downward.

  The lower ends of the left and right handles 11, 11 are attached to a handle frame 11 a along the left-right direction, the handle frame 11 a is connected to the left and right rear attachment frames 7, 7 of the body frame 1 with bolts and nuts, , 11 are extended to a rear-upward slope. The left and right handles 11, 11 are provided with left and right work switches 10, 10, the battery 3, the motor 2 and the left and right work switches 10, 10 are connected via a connector such as a cord 9, and the motor 2 is connected by the left and right work switches 10, 10. ON / OFF operation is performed.

  As shown in FIGS. 2 and 3, the tilling work machine 12 has a cylindrical tilling frame 12a that is long in the vertical direction, and a left and right that is rotatably supported on the lower end of the tilling frame 12a around a left-right axis. It consists of rotary 12b, 12b, a cultivation attachment frame 12c provided at the upper end of the cultivation frame 12a, and cultivation transmission means 12g provided in the cultivation frame 12a.

  The tillage transmission means 12g includes, for example, a tillage transmission shaft extending in the vertical direction on the tillage frame 12a, and a worm gear, worm on the transmission path between the lower end side of the tillage transmission shaft and the left and right rotary 12b, 12b. A wheel is interposed, and the power is transmitted while decelerating and increasing torque.

  When the left and right front mounting frame bodies 6 and 6 and the intermediate mounting frame body 8 of the machine body frame 1 are fitted and mounted to the tilling mounting frame body 12c of the tilling work machine 12 while moving downward from above, the output shaft 2a of the motor 2 is mounted. Are engaged with the upper end of the tillage transmission means 12g of the tillage working machine 12 to be in a power transmission state, and the left and right front mounting frame bodies 6, 6 and the intermediate mounting frame body 8 and the tillage mounting frame body 12c are bolts and nuts. Secure with. Thus, power is transmitted from the output shaft 2a of the motor 2 to the left and right rotary 12b, 12b while decelerating and increasing torque by the tillage transmission means 12g in the tillage frame 12a, so that tillage work can be performed.

According to the said structure, a tilling operation | work can be performed by attaching the tilling work machine 12 to the lower part of the body frame 1 provided with the battery 3 and the motor 2. FIG.
Next, the electric drive configuration of the lawn mower 14 will be described with reference to FIGS. 4 and 5.

  The lawn mower 14 includes a lawn mowing frame 14a, a lawn mowing blade 14b that is rotatably supported on the lawn mowing frame 14a around an axis in the left-right direction, and a lawn mower attachment provided at the front and back of the upper end of the lawn mowing frame 14a. The frame bodies 14c and 14c, the left and right front wheels 14d and 14d and the left and right rear wheels 14e and 14e that support the lawn mowing frame 14a, the turf grass storage bag 14f, and the lawn mowing frame 14a are provided in the lawn mowing frame 14a while decelerating and increasing torque. Lawn mowing transmission means 14g for transmitting power.

  When the left and right front mounting frames 6 and 6 and the intermediate mounting frame 8 of the machine frame 1 are fitted and mounted on the lawn mowing mounting frame 14c of the lawn mower 14 while moving downward from above, the output of the motor 2 The end side of the shaft 2a and the start end side of the lawn mowing transmission means 14g of the lawn mower working machine 14 are engaged to be in a power transmission state, and the left and right front mounting frames 6, 6, the intermediate mounting frame 8 and the lawn mowing mounting frame. 14 c is fixed with bolts and nuts, and the lawn mower 14 is attached to the machine frame 1.

Thus, power can be transmitted from the output shaft 2a of the motor 2 to the lawn mowing transmission means 14g, and the lawn mowing blade 14b can be driven while decelerating and increasing torque to perform lawn mowing work.
According to the above configuration, the lawn mowing work can be performed by attaching the lawn mowing work machine 14 to the machine body frame 1 including the battery 3 and the motor 2.

Next, the electric drive configuration of the brush cutter 16 will be described with reference to FIGS. 6 and 7.
The brush cutter 16 is provided at a brush cutter frame 16a that is long in the front-rear direction, a brush cutter blade 16b that is rotatably supported on a bent portion at the front end of the brush cutter frame 16a, and a rear end portion of the brush cutter frame 16a. The trimming attachment frame 16c, the operation handle 16d attached to the rear side of the trimming frame 16a, the shoulder belt 16e attached to the fuselage frame 1, and the trimming frame 16a are decelerated to increase torque. And mowing transmission means 16g for transmitting power while aiming at

  The operation handle 16d is provided with a work switch 10, and the battery 3, the motor 2 and the work switch 10 are connected via a connector such as a cord 9, and the motor 2 is turned on / off by the work switch 10.

  With the left and right front mounting frames 6 and 6 of the machine body frame 1 being forward and the left and right rear mounting frames 7 and 7 being rearward, the left and right front mounting frames 6 and 6 and the intermediate mounting frame 8 are When the mowing attachment frame 16c of the mowing work machine 16 is fitted and mounted while moving from the front to the rear, the terminal end side of the output shaft 2a of the motor 2 and the start end side of the mowing transmission means 18g of the mowing work machine 16 are connected. Engage with each other to establish a power transmission state, and the left and right front attachment frames 6, 6, the intermediate attachment frame 8, and the brushing attachment frame 16c are fixed with bolts and nuts. Thus, the trimming machine 16 is attached to the machine body frame 1 by the shoulder belt 16e, and the trimming blade 16b is rotationally driven by the motor 2 to perform the trimming work.

According to the above configuration, the mowing work can be performed by attaching the brush cutter 16 to the machine frame 1 including the battery 3 and the motor 2.
Next, the electric drive configuration of the pump work machine 18 will be described based on FIGS. 8 and 9.

  The pump working machine 18 includes a box-shaped pump frame 18a, a pump 18b disposed in the pump frame 18a, a pump mounting frame 18c provided at a front end of the pump frame 18a, and a pump frame 18a. A water absorption hose 18d attached to the water absorption part, a discharge hose 18e attached to the discharge part of the pump frame 18a, and a pump transmission means 18g disposed in the pump frame 18a for transmitting power while decelerating and increasing torque. , Is composed of.

  The left and right front mounting frames 6 and 6 and the left and right rear mountings with the left and right front mounting frames 6 and 6 of the machine body frame 1 arranged on the rear lower side and the left and right rear mounting frames 7 and 7 on the rear upper side. When the pump mounting frame 18c of the pump working machine 18 is fitted to the frames 7, 7 and the intermediate mounting frame 8 while being moved from the rear side to the front side and fixed with bolts and nuts, the output shaft 2a of the motor 2 is secured. Is engaged with the starting end side of the pump transmission means 18g to be in a power transmission state. Thus, when the pump work machine 18 is mounted, the machine body frame 1 is moved close to the water source, the tip of the water absorption hose 18d is connected to the water source, and the motor 2 is driven, the pump transmission means 18g decelerates to increase torque. Power is transmitted and the pump 18b is driven, and the water absorbed from the water absorption hose 18d is discharged from the discharge hose 18e, so that the pump work can be performed.

According to the above-described configuration, the pump work can be performed by attaching the pump work machine 18 to the machine body frame 1 including the battery 3 and the motor 2.
As described above, by using the machine frame 1 including the battery 3 and the motor 2 to replace the work machine, the plowing work machine 12 performs the plowing work or the lawn mowing work 14 performs the lawn mowing work. The brush cutter 16 can perform the brush cutting work or the pump working machine 18 can perform the pump work, and various operations can be quickly performed while reducing the cost. Moreover, the battery 3 can be removed from the machine frame 1 and charged, and the work can be performed for a long time.

Next, another embodiment of the tillage working machine 12 will be described with reference to FIGS. 10 and 11.
The tilling work machine 12 includes a tilling frame 12a, left and right rotary members 12b and 12b supported on the lower end portion of the tilling frame 12a, a tilling attachment frame 12c provided on the upper end portion of the tilling frame 12a, and a vertically long cylinder. A tilling transmission shaft 12d that is pivoted along a vertical direction on a tilling frame 12a configured in a body shape.

  The worm gear 21 is attached to the lower end of the tillage transmission shaft 12d, the worm wheels 22 and 22 are attached to the inner ends of the rotary shafts 12e and 12e of the left and right rotary 12b and 12b, and the speed is increased from the worm gear 21 via the worm wheels 22 and 22. Power is transmitted to the left and right rotary 12b, 12b while torque is being achieved. One-way clutches 23 and 23 are interposed between the rotary shafts 12e and 12e of the left and right rotary 12b and 12b and the worm wheels 22 and 22, and the left and right rotary 12b and 12b are rotated and driven only in a predetermined direction. I try to idle without driving.

  When a foreign object such as a stone is caught in the claw parts 12f of the left and right rotary 12b, 12b of the tilling work machine 12 and mechanically locked, the worm wheels 22, 22 may be damaged if the claw part 12f or the foreign object is hit with a hammer. is there. For this reason, when removing the foreign matter, it is necessary to remove the claw portion 12f from the rotary shaft 12e, and it has been troublesome to remove the foreign matter.

  However, according to the above configuration, the one-way clutches 23 and 23 are interposed between the rotary shafts 12e and 12e of the left and right rotary 12b and 12b and the worm wheels 22 and 22, so that the claw portion 12f of the rotary 12b is counter-driven. By hitting the foreign matter and the claw portion 12f with a hammer so as to follow the direction, the foreign matter can be removed without removing the claw portion 12f from the rotary shaft 12e and preventing damage to the worm gear 21 and the worm wheels 22, 22. .

Next, another embodiment of the lawn mower 14 will be described with reference to FIGS.
A lawn mowing transmission means 14g is provided in the lawn mowing frame 14a of the lawn mower 14 to transmit power while decelerating and increasing torque. The lawn mowing frame 14a is provided with a lawn mowing blade 14b that rotates about a left-right axis, the lawn mowing frame 14a is provided with a lawn mowing attachment frame 14c, and the lawn mowing blade 14b of the lawn mowing frame 14a. The left and right front wheels 14d and 14d and the left and right rear wheels 14e and 14e are provided at the rear of the vehicle to support the lawn mowing frame 14a.

  In addition, the left and right front wheels 14d and 14d are positioned in the middle part of the lawn mowing frame 14a in the front-rear direction so as to support most of the weight of the lawn mower 14. And it arrange | positions so that it may be located inside the left-right width of the lawn mowing blade 14b. The left and right rear wheels 14e and 14e are positioned outside the left and right width of the lawn mowing blade 14b. However, like the left and right front wheels 14d and 14d, they are positioned inside the left and right width of the lawn mowing blade 14b. It may be.

  Further, the driving transmission means 14h is extended from the lower end of the lawn mowing transmission means 14g of the lawn mowing frame 14a to the left and right sides, and further the second driving transmission means 14ha along the front-rear direction is extended through the left and right front wheels 14d, It is self-propelled so as to transmit power to 14d, so that lawn mowing work can be performed easily.

  Further, the second lawn mowing transmission means 14i is extended from the lower end of the lawn mowing transmission means 14g of the lawn mowing frame 14a to the left and right sides, and further the turf mowing blade 14b is powered via the third lawn mowing transmission means 14ia. Communicating. Therefore, the right and left balance of the lawn mower 14 can be maintained well and stable running can be achieved.

  In addition, when the left and right front wheels 14d and 14d and the left and right rear wheels 14e and 14e are provided on the left and right outside of the left and right width of the lawn mowing blade 14b, the uncut work area is left and right front wheels 14d and 14d and the left and right rear wheels 14e and 14e. , The uncut grass is pushed down, and the problem that the cutting height becomes uneven occurs.

  However, according to the above configuration, the left and right front wheels 14d and 14d that support most of the weight of the lawn mower 14 are provided behind the lawn mowing blade 12b and inside the left and right widths of the lawn mowing blade 14b. Therefore, the left and right front wheels 14d, 14d pass after cutting and can solve the above problem.

DESCRIPTION OF SYMBOLS 1 Machine body frame 2 Motor 3 Battery 6 Work implement attachment means 7 Work implement attachment means 8 Work implement attachment means 10 Handle 12 Work implement (cultivation work implement)
12a Tillage frame 12b Rotary 12c Work implement attachment means 14 Work implement (lawn mower)
14a Lawn mowing frame 14b Lawn mowing blade 14c Working machine attachment means 14d Left and right wheels 14e Left and right wheels 14g Lawn mowing transmission means 14h Traveling transmission means 14i Second lawn mowing transmission means 16 Working machine (brusher)
16c Work implement attachment means 18 Work implement (pump work implement)
18c Work implement attachment means 21 Worm gear 22 Worm wheel 23 One-way clutch

Claims (5)

  The motor frame (1) is mounted with the motor (2) and the battery (3), and mounting means (6, 7, 8) and a handle (10) for mounting the work machine are attached to form an electric drive unit. A plurality of work implements (12, 14, 16, 18) are provided with work implement attachment means (12c, 14c, 16c, 18c) that can be attached to the attachment means (6, 7, 8) on the electric drive side. And selecting any one of a plurality of work machines (12, 14, 16, 18) as the mounting means (6, 7, 8) on the electric drive unit side, and the work machine mounting means (12c, 14c, 16c, 18c), the drive means of the electric drive unit and the drive means on the work machine side are in a transmission connection state, and a plurality of operations are performed using one electric drive unit. .   In the invention of claim 1, power is transmitted while decelerating and increasing torque in the power transmission path from the motor (2) of the electric drive unit to the work device of the work implement (12, 14, 16, 18). Agricultural working machine provided with transmission means (21, 22).   In the invention of claim 1 or 2, a one-way clutch (23) is interposed in the tillage power transmission path of the tillage working machine (12), and the rotary (12b) is driven to rotate only in a predetermined direction and in the opposite direction. Agricultural work machine characterized by idling.   The lawn mower (14) according to claim 1 or 2, wherein the lawn mower (14) has a lawn mowing frame (14a) having lawn mowing transmission means (14g) and a lawn mowing blade disposed on the front side. (14b) and left and right wheels (14d, 14d, 14e, 14e) located behind the lawn mowing blade 14b, and the left and right wheels (14d, 14d, 14e, 14e) Agricultural working machine, which is disposed so as to be located on the inner side of the lateral width of 14b).   In the invention of claim 1, claim 2 or claim 4, the lawn mower (14) is provided with a lawn mowing frame (14a) having a lawn mowing transmission means (14g) and a front side part. A lawn mowing blade (14b) and left and right wheels (14d, 14d, 14e, 14e) located behind the lawn mowing blade 14b, and the lawn mowing transmission means (14g) at the center of the aircraft Power is transmitted to the left and right wheels (14d, 14d) via the traveling transmission means (14h) that is disposed and extends from the terminal side of the lawn mowing transmission means (14g) to the left and right sides, and the lawn mowing transmission Agricultural working machine, wherein power is transmitted to the lawn mowing blade (14b) via second lawn mowing transmission means (14i) extending from the terminal end side of the means (14g) to the left and right other side.

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